I received some great feedback on comments on my last post and wanted to add 1 more piece i worked on. This is Trixie Treats from the Monster Dolls dance troupe. I did a few concept sketches early on to not only figure out the expression but to study her features and proportions in 3D. She took 3 tests that i scrapped before i decided on the one i liked. I did a warm up sketch and covered it and put it away, came back to it the next few days and looked at it and compared her through looking at her and comparing pics on overlays in computer.
As long as you enjoy and learn from every piece its not a waste of time, even if it isn't worth saving.