I've taken note of everything you've said. Thanks a lot! I need to pick the guitar and try your suggestions before commenting on them. Only one thing: as I said, the second of the two photographs I uploaded looks better, because the fingers are more relaxed and no phalanx is bended the 'wrong' way. But I'm unable to place my fingers like that if I keep my thumb where it usually is, roughly in the middle of the back of the neck. To curl the fingers in that way I need to take my wrist much backwards and upwards and my thumb much more upwards, which takes a lot of time when coming from my 'normal' position. Which is something I shouldn't probably be doing. But it seems to be either that or the first photograph. (Thanks for the tip on placing my fingers closer to the frets. I probably didn't do so because I was paying more attention to how to take a photo of myself than to anything else, but I'll make sure I do it as you say).