Cool base. Maybe a sky gradient going into that nice tan color and some clouds. With the logo in that position, put some sun rays going towards the nose from it in a lighter tan color than the base is. I think a double digit number would be cool in a lighter tan color with a bold black outline. Simple like that. Number 77 would be cool skewed towards the nose in like the Gordon font and on the roof make the numbers tan since the roof is green. I would also make the logo on the hood bigger.