look for more opportunities for tiling texturing and "wise" ways of packing textures and materials where available
look into some of the seams and divisions in your brick sculpts- if it exists in your reference leave it, if not, it will probably be caught by a senior artist
check column weight- if its fantasy-- its fine, just check it
think about the materials of your objects and how to best make them- even though you're hand painting, you're not going to want to 0-1 hand painting every asset unless you have a clever plan on how it will be done
id expect the banner to be more tattered
-check how the columns crack in your ref- it looks a little suspicious and seems like a lot of cracks, even if its fantasy, it has to follow some physical rules-- the cracks are nice---but don't go crazy with them
-lets also see if we can get some of the brick mortar in those sculpts to pop out in some areas---its not going to be perfect everywhere
https://www.youtube.com/watch?v=MSvf8hcv0UU