Cool textures, but not-good colors. Remember: in real life, rocks tend to be brown or gray. In art, they look just as good purple or cyan, and often better.
this is a bit bland atm. I would try experimenting with contrast, hue and saturation variation, becuase your colors are all very dull.
The shapes look good, but the palette could use more contrast, IMO. Some more color variation in the palette wouldn't hurt either.
Thanks everyone for the criticism :) i'm going to be making changes soon to the palette. Unfortunately I was out all day so I could not change anything