Sorry for late reply in advance.
I used 3 stock images that are not mine (bob, lion and Africa). Now since they are not mine if I were to get them into production I would be hit hard with copyright infringement, no good. So what I would try to do is, contact the owners, which is hard because I got the images off google (for future reference dont use google images). I would ask the owners for permission to use these images before I do anything to do with the skis production. Now i don't really understand what you mean by "is everything vectorized/in large format" if you could explain that a bit more would be helpful.
Well the Lion and Bob part of the ski was extremely difficult because since there is only a handfull of pictures of bob, it is very hard to find the "perfect" fit picture. Good point though. Also I had to change the resolution/dimensions of the ski so it could fit an actual ski, so bob and the lion fit smaller on the ski then before and so i didn't want to ruin the quality by enlarging the picture.