Benji, thanx for the advices, I changed the geometry of the roof totally. Maybe I had to extrude some stones too on a second thought..JMT, yes, it's from this song!
I was listening to it several times during the process. I removed quite a lot of polygons and it's down to 3.8 k quads, i dont think i can go much lower though ( and I don't want to
There are some renders from now, maybe a few retouches will be good, but I am done with modelling and texturing for sure I will fix some weird texture stretches here and there I just noticed. This is a vray render with photometric lights only, no GI.