okay, lets see, in the first one, the lighting is horrible, sorry, but it's too bright,
in the 2nd the dappled lighting is distracting
the 3rd has a bit of it too, if it was either of the lighting ways, it would have looked nice.
in the 4th i really don't like the bright white background, so distracting
the 5ht and 6th are quite nice, though it's a shame the branch/leaves are in the way
if the branch wasn't there i'd say no. 6 is my fav.
all in all not too bad, just try to keep those few things in mind for next time.