Roof over bay. Questionable?

[Billy Skittle]

Hi all. Long time lurker and hoping you can all help. 

Having a loft conversion done and I’m questioning some of the work done on the hip roof above the Bay windows. The valley tiling seems to be single tiles, cut in half, using both side. The right side showing the double Roman “hump” and the left valley showing the interlocking side. 

Also questioning how symmetrical everything is (the ridges on the gable and how the tiles have been laid (off-centre)

Any thoughts?

[Mr Punter]

You could contact Marley or whoever and ask what they recommend.  Possibly the tiles on the small section should all be cut on the angle to run to the valley like the other side.  It looks like a real fiddle to do.  The hip tile on the right is too small.  It would have been nice if they lined up either side.  Also they need to be held down at the junction where they meet.