Although I'd love to help ye decipher what's going on in y'er screenies, it seems like ye got a privacy setting on and 'twon't let me view the images.
From what I've heard, though, it sounds like an incredibly interesting glitch. 'Ave ye downloaded any new mods, item packs, or markings? This could be the cause of the issue, if a file went missing during the installation.
Also, 'ave ye tried changing y'er rendering system? This could fix the issue if y'er computer can't handle the system y'er using currently.