Love the drawings of the deer and pronghorn antelope. Perhaps they're both antelope, but I don't think so. The artist is not a typical graffiti painter, but someone with great skill. Lovely pictures.
The artist calls himself/herself (who knows?) le chevreuil, which would be "roe deer" in English. I haven't seem much of that in the last years, even his/her flickr stream seems to be abandoned: http://www.flickr.com/photos/le_chevreuil/