notes: the shading on the wing membranes closest to the camera was too dark, making them look more bunched up/folded than the ones that were actually bunched up and folded. I removed those dark areas so that the more stretched-out membranes were more lit up.
I also TRIED to add some scale texture to the tail to match the legs, but I don't think I was terribly successful there.
Overall, i think there's a lot of overly dark shadows on this, but it's hard to tell without environmental cues if the lighting's off or it's just an artefact of a lack of context.