>>50003108The quick and easy way is
>import photo to art program (GIMP/Clip Studio Paint/etc)>set its layer mode to Multiply>color on a Normal layer beneath itwhich works better the lighter your paper is. But what I did here was
>photo layer as Normal>one layer as Add (lighter than paper), one as Subtract (darker than paper)>manually subtract the paper's RGB from the target color RGB, or vice versa>draw with the difference on the appropriate layerbecause this lets me get colors lighter than the paper - with Multiply, it only darkens.
You can see the difference between Add/Subtract and Multiply by comparing my MiloticxFlygon drawing with the Lugia one - Milotic's yellow and Flygon's light green "should" be lighter than the paper around them, but they're not, leading to a more muted tone. You don't notice it as much because the contrasts in colors is still consistent, but for Lugia I really wanted him to be lighter than the paper.
Theoretically, you could also go full-tryhard and make 6 separate layers for each R/G/B Add and Subtract, but at that point you may as well just trace over your lines and turn it full digital.
Picrel: my Lugia drawing with the traditional-art layer disabled, the dropdown of layer modes, and a side-by-side of Lugia and FlygonxMilotic.
