When to quit

I kind of mentioned this in an earlier post. Remember Mother's Syndrome? A part of that is quitting too early. You're afraid to mess it up by overworking it, so you underwork it. A prime example is my Ranger painting. He's all well and good, but I didn't do the necessary research on how to hold, fire, or string a bow and arrow, and worse, I didn't pop any highlights into my piece. I stopped with a nice underpainting. In fact, I may still have an underpainting here, but I'm moving on to other projects for now, so here are the changes I've made thanks to a few helpful critiques.

Which is better?