Champion Level Mastery : Great Addition

Was thinking of what the Riot Team could do to improve the champion level mastery and came up with this:

Let's say i upgrade Cho'Gath to LV5 mastery. Once achieved i could implement his background art (skin art) onto my profile so anyone looking me up could see my background. I think it would be great because currently on the user profile there is nothing for players to make it "their own". With implementing this idea we could change our backgrounds on our profile and have just ANOTHER reason to want to upgrade a champion's mastery level to 5. I would LOVE to see this come to fruition. Everyone agree?