I believe you’ve just started on it, looks quite good so far, obviously the walls will need more detail and lighting adjustments in the future. If you need any ideas of inspiration, here’s an example you could follow with your current work (not mine):
I’ve also noticed you’re using an extremely low Increment, which will make it harder for you to make parts even; 0.25/0.10 works perfectly for me!
There isn’t much feedback to give on a simple wall, but I hope to see more progress in the near future.