Digital study : collapsed concrete and textures

Here are some digital study I painted a while ago. I first painted the collapsing concrete pillar from a reference on Photoshop, then I applied the concrete texture I just painted, to another object still painting on Photoshop(here a Desert Rain Frog).
I also studied three other textures I reinvested in spheres in Photoshop : Kobe beef, Green Tea and Rusting copper