The whole seam portion is the crux. Start with both hands at the bottom on the seam and feet pasted under the bulge and start working the seam and trying to find feet to keep you from sliding back down it. Once you can really establish your feet on the face above the bulge your in. The seam ends at a horizontal and easier moves lead to the top.
Location
The obvious left slanting seam on the wall, climb it starting with both hands at the bottom.