While I like to think there has been some improvement in the art in Cold Servings my art isn't improving as I'd hoped.

I think part of the reason for that is that maybe drawing a comic and drawing to learn to draw better are two different things. For instance if I have a problem with keeping character designs (particularly faces/heads) consistent from one panel to the next, let alone one update to the next) then what I probably need is probably to sit down and draw that character design from a dozen different angles, over and over again, until it comes out recongizeably the same every time. Likewise figure/anatomy problems probably require drawing figures from actual models (whether live or photos).

Flip side, for me, is that at least the discipline of needing to make regular updates for the comics at least forces me to sit down and draw. I've got a schedule to maintain, I've got deadlines. It works for me much the same way that taking Judo worked for physical fitness. When I tried to do exercise for its own sake, I rapidly lost interest and quit, but when I had something specific to work toward, something that I enjoyed, it was much easier to keep up with that.