I am finally learning to color digitally, so I have a ways to go before I get to snip the "amateur" tag from my work. My first few pictures have been decent, but I haven't been too happy with them until my latest Minerva pinup. I am also learning that, if I can't do extremely detailed shading correctly, simple cell-shading works wonders for me. Also, composition is SO important, so I've been teaching myself to be patient and plan each portrait thoroughly instead of just jumping in guns (or mouse clicks) blazing.
Thanks to everyone who has been supportive and kind thus far.