I have a texture i need photoshopped to add vegetation on top of the basic floor area.

Its a desert landscape but this particular tile is near the river (Think of the River Nile mouth in egypt), there is quite a big of green along that river and need this tile to reflect that.

I do want some sand to still show just so people know they still are in the same Desert wilderness.

Here is the current floor tile:


Hope you can help.