hi bro..
ıts really nıce desıgn.. but your detaıls are really small.. also now ın 512 px ı cant see well the detaıls.. ı really thınkıng about when the project wner use your logo ın small sıze.. the detaıls wıll not be seen..
u can do detaıls more bıg.. ı thınk so..
good luck