Good progress! I would recommend a technique called 'edge coloring' if you're interested. Basically you can use a pen or marker to color the white edges of the paper that peek out in your build. This is a good technique to apply to the edges of most parts, but IMO it's most notable in places like the wheels. Since they're black, the white edge of the paper is going to stand out!
I usually run a ultra-fine Sharpie over the edges of my wheels and am pleased with how they turn out
