Well, looking at the source code and seeing this in both.
<META NAME="DESCRIPTION" CONTENT="Beautiful images, photographs, pictures of Vancouver, BC, Canada">
<META NAME="KEYWORDS" CONTENT="beautiful, images, photographs, pictures, Vancouver, BC, Canada, Stanley Park, Gastown, Capilano Suspension Bridge, Granville Island, Seymour, Grouse , Whistler, Garibaldi, hiking, camping, Russet, Wedgemount, Manning Park, Frosty">
Notice the description and keywords both completely pertain to Canada, though only Tantalus' site is geared towards Canada, Slens front page even has a photo of Dublin. On top of that, on Slens "Me" page, as he says "I am Chinese who are living in Ireland".
Seems to be a rip to me, seeing as how if Slens had created his own site from scratch I don't think he would've included meta information about Canada given his locale, but I suppose he could have some kind of reason...
I would still contact him nonetheless and see what he has to say, it's unfortunate that people get so lazy as to rip others work so blatantly