I had this same problem exactly a couple of months ago!!! The texture i used for my leaf wouldnt quite line up with the model, and i fiddled with it for ages just to get most of it looking decent, tho the top of the leaf’z bump map still didnt show up properly.
Did you figure out how to better align the texture? If you did could you share? I drew mine from a picture of the model, so i reckoned it would fit just right, then it didnt.
Here’z a pic so you know what i mean…