Almost right....

The arrow on the camshaft sprocket is only approximate. The TRUE timing marks are little dimples out near the teeth. They should line up flat along the top surface of the head, or the top end of the shroud between the head & sprockets. On a DOHC head all 4 dimples along with the 2 camshaft centers should all line up under a straightedge.

The arrow is only there so you don't get it completely upside-down.