Howitzer: I’ve started using decals recently, but it’s only for the graffiti and the dirt below the windows so far. I did find that the first one was fine but subsequent ones seemed to leave a little bit of a shadow round them like they were slightly away from the wall.
Also, wall dirt’s a bit of a funny thing anyway. How it looks depends on what time of year it is. In Summer it’s pretty much all dust so you don’t really see it. Only when it gets wetter do you start to get dirty plaster. Anyway, you’re spot on, the texture needs work. The front’s quite important so there’s probably a case for creating a UV mapped image with everything on.
Mats: The pavement’s pretty lifelike in that the stuff they used (cocciopesto) was quite a hard, flat, smooth surface. The road looks nothing like it should though. I’m still working out how to replicate the Pompeiian road surface with its large blocks and cart ruts. You’re right about it looking like Caeser too, and better lighting would definitely help.
bjzaba: Cheers! It’s steadily getting better. Still some way to go though.