I tried out a new paint-y, lineless style here, and I think it looks pretty good! I felt that drawing without clear lines forced me to understand light and shadow better to convey the shapes of things, so I think I learned a good bit, but it's something I still struggle with so I also got a lotta ways to go.

Bonus worldbuilding no one probably cares about:

Don't have names for these two yet, but the orange-green one would probably start with an A and the yellow-blue one would probably start with a B. So we'll call them "A" and "B" for now. They're miners assigned to dig on a large, untamed alien planet, the atmosphere of which is so oxygen-rich that it necessitates the use of air filters to partially filter the oxygen so that they don't die of poisoning. The life on said planet is correspondingly massive, many creatures as large as their own drilling vehicle. "A" enjoys cataloging and taking notes on the environment and its lifeforms, "B" is more of a silent enigma who just shakes his head and mumbles.