Hi all, recently I’ve been working on quite a few japanese weapons, and I’m trying to make them look as realistic as possible

This is the latest render of the Sai picture

there is also a reason why there is so much space around the outside, but I haven’t cropped the pic yet.

Does anyone have any ideas on how I can make them look more realistic? particularly the handles, and also about the scene in the background?
thanks in advance for any useful crits/comments

something doesn’t look right with the reflections on the blades but I’m not sure what it is…any thoughts?