The quarry's first real art, in the GemScape style: crystal tiles that crack after the first and second pickaxe hits, dug-out pits where tiles were mined, and a dirt strip the imps walk in on.
One tile drawing serves every color. The game colors a gray layer under an outline layer, so later levels can add colors without new art.
The pickaxe, the jewels and the sack (empty, then filling with each jewel) are drawn art now too. The imps are still placeholders until their art is approved.