great pixels in the fur! very convincing texture, the texture on the wings looks amazing but it doesnt feel like bat skin to me, also the one thing that really bugs me is the furthest away back leg seems to be coming straight out of his back, that leg most likely would be hidden but to parott Jeremy ref would be helpful in diagnosing that leg :P
Oh by the way i think the dither in the mouth is really out of place and makes such a nice looking pixel lower quality.
This looks great. One of the best bats I've seen in a long time :)
Oh my gosh I LOVE it. Excellent job. The mouth shading is just a tad bit odd.