Everything that's old is new again

Things have been a bit quiet on the illustration front for me, being kept busy with work and family life... One creative outlet I've found is colorizing old black and white photos that people have been posting on Reddit. It's been an interesting way to practice photo retouching, as well as explore color theory and lighting.

Here are a couple before-and-afters of pics I've worked on:

Gamut mapping

Color study of an alien attack drone:

This was an exercise in gamut mapping using a triadic color scheme, something I picked up from James Gurney's Color and Light. I started out with a grayscale drawing, then when over it with washes of yellow-orange, green and purple. Wasn't very precise about it, but I think it holds together well overall. Knowledge!