the miltank is the obvious better of the two.
for misdrevous...
you seemed to have reshaped the head from the original sprite. i personally like the original sprites head shape better along with the eyes on it. maybe just try to do some editing/recolor to it..?
On misdrivous, you put the light shadeing on the tail. So you know, that almost makes no sence. You should put some light shadeing on the head and the darkest shadeing on the tail.