Sure.
You're allowed to have 25 image links in one post. For instance, the banner in the opening post would be considered one image link. Another image link in the opening post would be the Ephram and Amy fan art. Right now, I believe you have 5 image links in the opening post, which means that you could add 20 more links. I hope that makes sense. If not, let me know what I can clarify more.
Oh yes, adding some more E/A scenes to the opening post would be fun.