>>49859475
This is just general advice.
The best advice I've received about digital painting when I started was to avoid soft brushes and instead use solid ones and draw shapes and forms, you don't need 400+ fancy brushes. For color picking use desaturated colors for a base.
Try to sketch the entire thing with big fat brushes and a limited palette, if it looks good in that stage it will look good fully rendered. The key to good looking things is not how much details you add but how good your lighting and color picking go. Again lighting is everything.

Do studies, paint everything.
If you feel stuck, look for an artist's way to do X thing that you are working, and observe their traces, you will see the solution to the problem right in front of you.

Pic related is kind of a general idea of how you should approach painting.