
7 Checks to Test the Accuracy of Your Portray
On this publish, I’ll share a number of the assessments you need to use to test the accuracy of your work or to diagnose errors. I’ll use my latest portray, Elora and White Roses (proven beneath), to exhibit my factors.

Why These Checks Are Necessary and When to Use Them
In fact, the important thing profit of those assessments is to supply extra correct and plausible work. Nevertheless it’s additionally about honing your judgment as an artist. It’s not possible to hone your judgment in case you’re naive to your individual shortcomings or errors.
You should utilize these assessments at any level all through the portray course of. I discover them significantly helpful for the next:
- Firstly of a portray once you’re establishing the inspiration, particularly for advanced topics.
- To ensure you’re heading in the right direction halfway via a portray.
- After you have accomplished a portray to confirm your accuracy.
- When it is advisable diagnose a mistake or drawback.
1. Squint Check
Squint at your portray and the topic and search for any evident points or irregularities. Squinting reduces the “noise” of what you see and makes every little thing seem hazy and a contact darker. It’s an efficient take a look at for the big-picture features of your work, significantly in relation to worth (how gentle or darkish your colours are) and the foremost shapes.


2. Thumbnail Check
Have a look at a thumbnail photograph of your portray. If it seems to be real looking, that’s signal you bought the basics proper. You can too evaluate a thumbnail of your portray to a thumbnail of the reference photograph to identify any big-picture irregularities.


3. Use of Collage App to Evaluate Your Portray to the Reference Picture
Evaluate a photograph of your portray to the reference photograph. I take advantage of a collage app on my cellphone, however any enhancing software program corresponding to Photoshop or Canva will do (Canva is free and beginner-friendly). This assessments for problems with scale, perspective, and drawing. Portrait painters would discover this take a look at significantly helpful.

4. Grid and Key Measurements Check
Place a three-by-three grid over a photograph of your portray and your reference photograph. You can additionally place vertical and horizontal traces that undergo the center. Use the gridlines and intersections as reference factors to take key measurements with which you’ll be able to take a look at the accuracy of your drawing, scale, and perspective. I sometimes solely do that for advanced topics involving folks, animals, or structure.
I used grids and key measurements in Elora and White Roses to make sure my drawing of Elora was heading in the right direction. It was essential that I acquired her scale, form, and proportions proper. On a number of events, I acquired out a ruler and measured the precise distance between elements of Elora and the closest gridlines. I then needed to evaluate this to the relative distance within the reference photograph. Tedious work, however I wished to get this one proper.


I used to be significantly targeted on the areas circled beneath and their positions in relation to the grid.

I additionally used the gridlines to test key traces and angles. For instance, to confirm the accuracy of Elora’s left arm, I mentally drew a line that prolonged from her arm to the closest grid line. If the road intersects the grid in the identical spot because the reference photograph, I do know all is correct.

5. Grayscale Check
Grayscale a photograph of your portray. It will permit you to clearly see the worth construction (how gentle or darkish all the colours are). You may evaluate this to a grayscale of your reference photograph. Pay specific consideration to the lightest lights, the darkest darks, and the association of sunshine and darkish shapes. See beneath a grayscale of my Elora portray and the reference photograph. A number of key observations:
- My portray is extra compressed by way of worth. That’s, the lightest lights are a bit darker, and my darkest darks are a bit lighter than that of the reference photograph. That is by design, as I wished the portray to have a softer end with much less worth distinction.
- I’m lacking a darkish accent on the structure on the high. This was additionally by design, as I didn’t wish to draw consideration to this space and away from Elora. However, it may have labored properly with the intense, overcast sky as a backdrop.
- My portray has much less worth distinction within the background (see the timber on the again and the sky). I made up for this through the use of delicate modifications in hue and visual brushwork.


6. Colour Checker
Use Photoshop or another enhancing software program to examine a selected shade within the reference photograph. For instance, say I’m not sure in regards to the shade of Elora’s proper arm in shadow. I can use a shade checker to examine the colour by way of hue, saturation, and worth. I can use this data to confirm and make extra knowledgeable choices. Take into accout, I don’t do that usually. I desire to rely alone judgment first. That is extra of a backup possibility if all else fails.

7. Unfavorable House Check
Evaluate an space of unfavorable house within the portray to that of the reference photograph. Unfavorable house being the realm between objects and issues. For instance, I may confirm the accuracy of my drawing of Elora by wanting on the unfavorable house surrounding her and the shapes that house kinds. If the unfavorable house has a distinct form to that of the reference photograph, then one thing is incorrect with my drawing.

A Phrase of Warning
Don’t get caught up making an attempt to confirm each resolution you make in a portray. That will sap the enjoyment out of portray.
Additionally, there are occasions when it’s OK to be incorrect. Maybe you wish to exaggerate or restrain a sure element. Or maybe the error is insignificant and never price fixing.
Reserve these assessments for essential and elementary features of your portray. Issues that actually push the needle. For instance, in case you’re portray a portrait, it’s essential that you just get the eyes and nostril proper. Nevertheless it’s much less necessary to get the precise structure of the hair or the precise pores and skin tones.
Wish to Study Extra?
You may be fascinated with my Portray Academy course. I’ll stroll you thru the time-tested fundamentals of portray. It’s excellent for absolute newbie to intermediate painters.
Thanks for Studying!
I respect you taking the time to learn this publish and I hope you discovered it useful. Be happy to share it with associates. Let me know your ideas within the feedback.
Pleased portray!
Dan Scott

Draw Paint Academy
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