Certainly looks like what’s known as a kernel panic. Not had any significant issues with software upgrades on my two iPhones, a 3 and a 4, or my iPad. Is it properly backed-up? If so, I would suggest doing a restore to factory settings, then do a restore from back-up.
I did that once, after I did something daft, a 3-finger tap, which zoomed the screen right out, without realising what I’d done. What I should have done was google it. Instead I went the restore route. It worked fine, except it didn’t cure what I thought was a problem and wasn’t. It may well help with your problem, but you could google it because the Apple Forums may well have it well documented.