Hi transition and sanjartetro,
Yes, you can hide or delete the photos you have uploaded directly via YLF. This is how it works:
"If you hover over a photo in your post you will see the option “Hide Photo”. Click this and other people won’t be able to see the photo when they read your post. It is easily reversible — the option will immediately change to “Show Photo”, which you can click to make the photo visible again."
First you have to be able to upload photos to the website, of course. You can start doing that as soon as you reach the "active member" level. Here's a little more info about that:
http://youlookfab.com/backstag.....ng-photos/
In the meantime, you can always use services like Photobucket.
I hope this helps.