It was done up as a lava-themed table and the cracks in the ground were treated as impassible terrain, representing magma boiling to the surface.
I'm going for a desert/plains theme, so this simply won't do. Rather than just paint over it, I started filling it in with green stuff sculpted to look like broken rock.
I'm gonna need a lot more green stuff than I currently have, but for now, I should be able to finish up at least this section. After all the green stuff dries, it'll be sanded down a bit to get rid of the sculpting marks and any obvious pockmarks will be filled with Squadron green putty, a drop of casting resin or similar.