well kinda....what you need to do is delete all text images from your sig. You've uploaded them to the website, but you've chosen the wrong link format. you want to go with the one. right now you have it set to link them to the original album, so they're actually thumbnails. that's why they are so small.
here is the code for your reaper i made:
[IMG]
remove the spaces between the img and url codes.
then paste that in your text box like so. [IMG]