It's difficult to see whether the GU-H is in yaw or not. Suspect you're right.
The engine is indeed incredibly compact, but you only need two cylinders in a row. The clutch and everything is probably in the gear box casing and the alternator and pumps are probably at the front.
The layout with a hot V and at turbo allow for the great packaging at the top, and the intercoolers are probably located as close to the inlet manifold as they can get it.
I love watching it.
Did you notice the red signs "KEEP CALM and remove BEFORE FLIGHT" in the sidepods?