Cant put image in post

Hi, i just did banner for one contest here and i wasnt able to put image in my post!! (it was too big for attachment). So i gave the link. Its stupid, first, i wanna be able to see my work and 2) a lot less people click on links to see something. And other people always put pic in their post, its like only i cant.

I was thinking its maybe because is from my computer so i cant see it, but no, my bf tryed too and he cant see it either from his. Can this problem be solved somehow?

ps i tryed to put pic from flickr and shareapic both

 

The problem can be solved by creating a smaller version that fits within the requirements here. Other than that, use the file attachment feature or stick to links. The full files would be sent privately to the contest holder regardless.