i made 10 isometric graphics using this tutorial:

it contains the blend-file too, every graphic has it's own object in this file

(i made them for http://opengameart.org/content/make-it-quick in ca. 55 minutes, with setting up the blend-file)

http://flarerpg.org/tutorials/isometric_tiles/

i used models from these cc0 submissions:

http://opengameart.org/content/rocks-0 by yughues

http://opengameart.org/content/plants vy STKRudy85