Takes a while. But... no risk, no reward.
Just be careful what you share, that's all. Pictures of you can be used in a reverse-image search through google to find images that even just look similar, track down other potential online accounts you might have with other websites where you have uploaded those images, etc. Some websites have better password security than others, and others have worse. Someone determined enough, stands a good chance of getting in, if your passwords are shet and they know enough personal information about you.
All my passwords are unf**withable though. And I post hardly any images of myself online anyway. So... even if I do trust someone online, and I was wrong to... they will not get very far at all. Best odds would be to somehow infect my smartphone or laptop with malware, but I'm just not stupid enough to fall for shoddily worded text messages and strange looking website domains.