Have you looked at any photo reference? The lighting you're looking for doesn't seem too different from what you might find in museums and films, so you should be able to find plenty. When in doubt, always start by looking at the real thing, and stylise from there.
Reference would also help communicate to others what sort of armour you're going for, it would help others make suggestions and edit.
Also, your formatting's fine, but it would help people make edits more easily if you posted your image at 1x zoom. The forum has a zoom feature (click an image to zoom, click while holding any modifier key to unzoom), so pre-zooming is usually unnecessary.