@ Flexable
I am a bit torn about this question. I decided to no longer put my name on the images (makes for a nicer wallpaper). Sadly, some people use those images without crediting and, as a result, other people who are interested in them do not know where to find the original source (as seen with you). So, you may use them - and it would be nice if you gave credit.
@ Chevalier
Anything special in mind?