Nice, very minty
You might want to also make that available on the http://linuxmint-art.org/
Updated your subject, so as to not confuse other into thinking this is the "Linux MInt 15 Olivia Wallpaper". Please use rimg tags instead of img tags for large images, which will automatically show a thumbnail and create a link to the full image. Saves you time from having to do that
I did that for your post, and this helps keep the forums fast for users with slower Internet connections.