Your newer yellow kirby is beautiful, I agree more contrast needed, unsure about the circle edit comment though. What strikes me as messing up kirby though is the foot he's standing on and the headband - the foot I think could be a few pixels to the left to balance his body shape, as everything is skewed to the right except an arm. The headband is straight and level whereas kirby is leaning back and kicking up so it should tilt more anticlockwise-ly. His left (eye on the right) could be closer to the other eye too, looks like its floating off. Anyways thats a lot of words on quite minor things, it's a lovely pixel piece
I get the bad shading and contrast, since this was the first one of these I made, but I'm not sure what you mean by poorly edited circle?
Kirby is mostly just a poorly edited circle, needs more contrast, and better shading
Ha-DOOOOOOU-ken! :D
Fighter Kirby is just badass.