Okay, for ease of comparison, I REALLY want this on the same page as Adywan's version, lol.
Concerning the 'angles' on the 'stairs', your version (on top-right shot above) seems to have WIDER stairs than Adywan's version (shown further above). As you can see from the other shot shown of Vader walking down the stairs, we would end up seeing your wider ones in that shot, so Adywan's ones are more correctly laid out.