I'm usually for more contrast, but in this case I disagree with zi-double. I like it like this. Just the shape of the handle of that saw looks a bit strange to me.
any tips ... use more light colours to show where light touch wooden handle and iron hammer. you have light colours on the saw, but need more contrast ... else nice that make shadows - reflection from hammer on the saw isn't best, but nice that you make it ... also colours are good, but generally they need more contrast ...
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.