Hmm, good point. I think I'll remove surface e, and if you'd send me the burnt shrubbery (but darker if possible), I'll use it. I never realized how Athena's valley looked here, since I only tested a few random maps, mostly the built in ones, since those are some that are better known and that everyone has. However, I don't know any alternatives. It needs to be a stone, but other than making it smaller (not sure if that even would help) what can be done?
Of course, this is a specialty tileset, so I guess we can't expect it to look perfect on every map...