silvan: thanks!!
balfs: maybe you're right, but imho the size is quite exact. Maybe they used very big bricks

Anyway, I'll check it out one more time. Thank you for the comment
shero: yes, you're right: the red cylinders are characters. Some days ago I posted a sketch too

maybe you can let me know what you think about it
I hope I'll have the time to model the characters: if not, I'll model only the more important and set the scene at night. In this way I can avoid to model crowds of people at the market, etc, still having my nice priests doing their strange rites at the temple. Secondly, the moonlight will add a bit of mistery to the whole scene.