>>51645072that really looks like Ground. it associates with ground/clay and other soft soil stuff.
To make it rock you should add more dark colored or standart pokemon rocks colors.
Right now it looks like a clay pot which is super easy to break and doesnt look like an option against Golem.
+ the face of your pokemon is waayyy more zoomer-ish cartoonish which looks more like nu-pokemon than G1 pokemon