It looks like that at first but then, there’s a bunch of architecture, even something there looking like something to do with Buddhism, the highschool. So, just seeing that Mosque looks bad, we will have to see if it is the same person. Whomever posted those photos is interested it seems in architecture.
“He was into mosques?
http://www.evolo.us/architecture/prishtina-central-mosque-by-ooda-and-re/";
Looking at the whole folder, I’d say no, he liked architecture and some mosques have interesting features. Looking at his whole pinterest, I think there is no Islam focus at all. Assuming it’s even his pinterest and not some other person with the same name.