Because you put the link wrong, you have to put the .png ending link:
Web link, no image:http://imgur.com/gallery/lv5Vg
Right-click image and chose "View Image" and put that link:http://i.imgur.com/fkqAhRC.png
I already fixed your first one.
P.S. Thanks for the guide, I noticed you are doing a bit of effort here and I'll make sure you get proper rewarded soon.