It was pointed out a while back by pistachio that the lighting on the player sprites was inconsistent and could be improved. Seemed kind of daunting at the time to go and redo all the images, but in the end, my goal is to make a game with as much visual appeal possible...so they've been revamped. I played around with the saturation and colours a little as well and think the end result is a lot nicer. It's fairly subtle when playing the game, but the character has a lot more depth now and seems to fit in with the rest of the game better.
Here's a little comparison of several of the sprites ( I hope it hits the mark!):