just take a look at the screenshot. Why the hell is this happening???
There is obviously something messed up with UVs.
Did you do your UVs in Zbrush?
If yes, did you import the obj from zbrush after generating the UVs?
If yes and still it is not correct, check your import settings in Unity, is Swap UV checked, if yes uncheck.
ok now for some reason the import is much better but it seems like the texture has been place the wrong way round, seems like it got turned around a few degrees and then placed onto the mesh