Comment 9 for bug 1456591

I guess micahg question is on:
 Depends: ${misc:Depends},
          ubuntu-mate-wallpapers-utopic,
- ubuntu-mate-wallpapers-vivid
+ ubuntu-mate-wallpapers-wily

You remove the vivid package dep, switching to the one in wily (right), but you keep the utopic depends, which sounds weird. Do you ming expanding what you are trying to do here?

Also, remember that diff doesn't support binary, so ubuntu-mate-trusty-green.jpg isn't represented in the diff. I guess in addition to the debdiff, you should attach the tarball to this bug.

The rest looks good.