A few thoughts, 4k textures is a lot of background prop like this. Ideally you should be using a trim sheet or reusing parts of the texture. The planks aren't modeled in a very consistent way, consistency just demonstrates intention and shows choices were deliberate, here it feels random and like some geo could have been…
I made this model in blender, baked the cards in marmoset toolbag and textured it in substance painter. I would like to know your opinion about this model and comments on obvious errors. Thank you.