They are very good with photo manipulation. One of the most well done that I've actually seen, honestly. I see a lot of that because my ex really loves photo manipulation artwork, and I've come across a lot of (shit). But this stuff is great, you should tell them that. They're extremely good at their craft. Do they have a deviantART where you can buy prints?
(And I did get a kick out of it, by the way, it's excellent.)