Nice moves. The crux is getting off the ground: either start flat-footed with a very long reach, step up on the block to your left, or work up a few face holds a little to the right until you reach the horizontal crack. Get your first piece of gear here. The upper crack is much easier, and pretty straighforward.
On the NE side of the central block is an obvious hand crack that doesn't quite reach the ground.
1/4 inch to 2-3 inches.