That belt is loose.
Putting a cas back on and hoping it's in the right spot is retarded. (lining marks is hoping)
Only way is with a light. Everytime .
And not that it's critical, but I would have got the tapped section of the vct feed welded to give more thread engagement. You are only relying on a few threads without the extra weld.
There's a spot that has minimal gasket coverage that is ideally built up with weld.
Laying the 30 gasket on the 25 head will show you where.
Guys get away with out doing it.