Thank you guys!
The black ones are Fcuk brand ones. They have "FCUK" on the arms, which annoys me a little, but branding on glasses is pretty much inevitable, and once I have them on I won't notice them, so I guess I will get over that. The tortoise shell ones are basically the same as my red ones but a bit rounder, which was what I have been wanting for a while, and the black pair are because I got a second pair free and I wanted something a bit different, shape-wise. I got them from Specsavers, which I guess is a cheap-ish glasses store? They have their own brands and the 'designer' frames.
Also, I realised once I put those photos up that my regrowth is starting to look a bit silly. I really need to get my hair redyed.