Welcome to the forums!
Super nice work on the mountains and the lighting! But I do think the perspective of the structure is a bit off. Especially at the corner, you don't really know what you're looking at, because it sorta looks like a round edge but at the same time it also reads as flat.
I tried to do a quick redline and estimate where the eye level/horizon line is. I'd suggest working with the shading to really bring out that edge.
Great work though, can't wait to see more!