To be 100% honest...they look like crap edits of RPG Maker style sprites.
They don't fit the LttP style nor MC style.
From my opinion, LttP packed alot of detail in a 16x16 sprite using a limited palette.
Almost all, if not all, had the dark outline...which over half of your sprites do not have.
I'm not telling you to give up, just saying your sprites, in my opinion, look no where near what you seem to be aiming for. Again, just my opinion and I'm no expert spriter either.
EDIT:You use way too many colors for each individual sprite.