Rough sketch

Cleaner lines with basic shadow and anatomy adjustments

Clipping mask layer to separate character from the background

Basic colors

Lights and color treatment

Painting... this is the longest part of the process and where things gets juicy. It may looks like I'm run over and overlooking few other steps but there's no secrets, at this point I merge everything in 3 different layers (1- character, 2- web, 3- BG) and just paint each one with transparency locked

BG painting

Web, FX and final touches.