I hear you about development. I spent nearly a year, maybe more, developing a Summer Glau head morph for V4. I'd release her thinking she was perfect, then I'd see something and go back to change it. It could have been about 8 versions in before I really nailed her. That was only using commercial textures. When I got a texture from the artist that originally created the morph I'd used as a base, I finally nailed her using a morph that was 50% her original and 50% my final version. Trouble was, I couldn't release it! If you check my portfolio on ShareCG you'll find every version I could release from first till last.

CHEERS!