How to delete all picture from stolen iPhone

If you set up Find My iPhone prior to the theft, then there's a chance you can wipe the data via the iCloud web site (or MobileMe, if you set up the service some time ago). Log into the appropriate service (iCloud or MobileMe) from a web browser and proceed from there.

If you did not set up Find My iPhone before the theft, then there's no way to delete any content remotely. If you had a passcode set with the "erase after ten attempts" setting, the content should be erased, either automatically via that setting or by the thief restoring the iPhone so s/he can use it.

Regards.