I found these wonderful wallpaper that you could use with your Ubuntu system. I will dig around the internet to find some more wallpaper that you guys might like. Enjoy.
I did lower the quality of the images because when they are high quality they take longer for the page for some people. When you click on the image you will be giving the higher quality image.
Amanda on 
It would be nice if you linked to peoples posts where they put the images and not just a direct link the image itself.
I posted this a while ago. I didn’t really know better. But I may be taking down the website anyways. Not sure yet. I apologize if you own rights to one of the images. If you own one or more images I would gladly give you credit.
Sorry.