4 Feb 2022, 01:33

@brett hello!! If I were to make a bet my guess would be that the examples were all drawn in Photoshop using vector tools in that program and then there are some kind of clipping masks or lock transparent pixels on that layer to paint inside those shapes to keep the lines clean.

You can also use the lasso tool to create hard edged organic shapes, fill them and again use masks to paint inside those shapes as well.

I personally just use a hard brush to make the shapes and then use the same clipping technique to paint inside with out ruining the edges.