Offroadin'

So, here's my finished project for my boyfriend:
In the background I have a 12" by 12" sheet of scrapbooking paper that looks like someone drove through mud. In the left hand corner is a picture of Kevin (my boyfriend) when he's off-roading in between some trees, to that picture I added some paper to extend the trees off the original picture. In the middle I have a piece of rubber that may have come off a tire, I painted that with some "mud" and attached another picture of Kevin on top of it. In the left hand bottom corner I have a jeep toy that I found in HummingbirdEyes's Etsy shop. Above that I have the Kevin's initials. In the bottom right corner I have a "license plate" that I bought at a scrapbooking store. I busted that up with a hammer, rubbed it with a metal file and painted it with "mud", I also "screwed" it on with metal brads from skybluepink. Above that I have the word "muddin", the letters are out of a chipboard set, that I painted black and then added the "mud" on top of. Everything has been painted/spattered with the "mud" for a cohesive look. It's all mounted on a 12" by 12" artist canvas I bought at Hobby Lobby.

Christmas present

I'm making a scrapbook/canvas for my boyfriend, Kevin. He's really into offroading. That's a picture of him in the middle. I'm planning on making paper "trees" to put on the ones in the picture, making "mud" of brown and black paint to put on the license plate and the rubber "tire" under the truck in the corner.
Anyone got ideas for the other top corner? Or should I leave it as it is?