I'm sure this has been asked a few thousand times, but I can't find it in the FAQ's.

How does one enter a comment under the pic? I saw no place in the entry text where it could be inserted

I think it may for advantage users. dunno. It shows up there for me.

you should do this when you upload your entrie already, or later be klicking "edit" right above your entry-pic. and: welcome!

Everyone can do it...Yellopiggy is right.