I tend to forget how i paint things so this time im writting it down.
Undercoat: Umber
Basecoats as an overbrush letting some undercoat show through:
burnt siena for the redish tiles.
Hookers green for the shed and some random tiles on big roofs,
Paynes grey for some random tiles on the middle roof.
Highlight drybrush:
Mix burnt siena+yellow ochre+ naples yellow about equal parts (red tiles)
Mix Burnt Umber + naples yellow (hookers green tiles)
Final light highlight everywhere:
Pure naples yellow.
I :

Naples yellow