Ok, two different renders of the same alien ant. I liked them both so decided to post them both.

Top Render:

Ant has more hair.

Dirt texture and grass are smoother.

Shadows fall differently on the rocks, dirt and grass.

Ant is shaded less.

Bottom Render:

Ant has less hair,

Rocks, dirt and grass are sharper. Textures are not as smooth.

Grass is duller.

Shadows fall differently on Ant.