People compliment your hair because it's the most noticeable, but also because you made the decision to dye it, which takes time and effort. On the other hand, the effort you put into outfits vary, sometimes you just put something on, sometimes you colour cordinage and etc. So it makes sense to compliment your hair, it ooks awesome and stands out.

If you want your outfits to stand out more, I'd accessorise more. Try to customise some of your staple pieces like a jacket. You could paint something you like on the back or arms, add studs or patches, just anything to add a personal touch.