alignment and texture union

[Arris]

Good morning, I hope I don't repeat any discussion already started :frown:

I am a beginner in modeling 3d and I have small problem highlighted in the attached image.
in a few words I am working on the graphic reconstruction of the castle of my country.

Problem 1: How can I rotate textures correctly? as you see I have the covers that go all on their own and the plan of the lands and walks idem.

problem 2: there is a way to make the textures in x merge to those in y to make the effect of the stone texture realistic
thanks for the attention

arris

 

[GP.]

You must have map i materiali.