I think, I figured out, the plus near the My Favorite Coffee Mug needs to be selected and then photos uploaded there. I was doing that near Hive 5, so may be it was not taking that because of some settings at your end !!
Just experimenting waivio, I would like to take this to my place.
Edit : I see the post made it to hive, but where would those photos go ? I don't see them in my post ?
It looks like you managed to fix the post and received the rewards already.
Re: editor
Maybe it would be better to separate the title of the post and the text itself.