this is not normal that your pictures disappear, there is only you who has this problem, you should contact blogspot.A my opinion this is a technical problem.
It's not first time. I had changed many pictures before but now they all are gone. I saw few blogs who have the same problem.
strange, you ´ve to contact with blogspot, and let them know your problem, maybe somebody stole your password, by the way have you see this site ?http://www.hypnotizedsims.com/ it has some of retextures like you, you 2 work together or are different site , regards
Idk how to contact Blogger administration, but I'll show my new blog very soon.About hypnotizedsims. We just friends - not partners. It's just maybe looks similar but Kotangens use Nouk modified textures. I use real hair texture ( I just modified it and use not very realistic textures)