When you added each border in the original photo, did you first measure through the middle of the quilt and cut the border strip to that measurement? If you didn't do this and just sewed strips on and cut them off, I think that is the reason why it developed a wrinkle. I would re-do according to the first photo, but measure through the middle and cut two borders at a time, pinning borders on before sewing. (Also, heavily starching the panel and other fabric will help keep everything flat. If one of the fabrics stretches easily, I recommend a 1:1 solution of Sta-Flo liquid laundry starch and water, which makes a very heavy starching solution.)
Gingham checks are not very masculine. I think only the very dark blue and very dark purple (black?) next to it would even be possibilities, and I do not see how they could be used. The camo fabric in the first photo is a really nice complement to the wolf picture, so I would try to re-use it with heavy starching (and measurements).