Originally Posted by Johnny Look Ok in this case I'll have to tell you they are too simple, some elements like the trees and the spikes look completely flat imo.
Not saying they're bad or anything but with some more shading you should be able to have some pretty decent results.
Graphics can never be too simple. What a silly thing to say, it all depends on visual style and theme.
I'm not so sure it was a silly thing to say; it is more likely that Johnny Look was trying to say that the trees are too simple/flat in comparison to the rest of the background. If this is the case, i think he has a point.
Apart from the trees though, i think the graphics look cool!