hmmm... unlike your amazing planes this has several hmmmmms. I will list them since you are obviously a detail man. The arm logo is flat and pops out too much, this color can also be ommited if you used the gun tip blue. The silver areas, excluding the gun could use a bit of the same gun blue to add interest to the leg area of this sprite. The oranges on the helmet are a waste of colors, they are nowhere else and don't add to the piece in a significant way to justify its inclusion in the pallete. The two lighter browns from the gun and the light yellow from the face will accomplish the same effect. One last item and perhaps not really needed is the where the helmet meets the backpack blends too much so that the face area actually looks disproportianate to the rest of the figure. Some grey piece/panel like the knees in there might look great, like an extension of the arm stripe.....hmmm...<3 it.
Want to give some dough back to all those amazing pixel artists? Donations provide prize money for contests, help cover hosting costs and support new initiatives.