Please as asked by Mel post another close up pic of your axie as it appears she may have eaten some gravel. Please do this the people on here are great at helping you out and that is all they want to do is to advise you and help.
Hi,
I like the background you chose and I hope you have gotten rid of that gravel. I'm not sure if you had the light on over the tank for the pictures or if you keep it on all the time but you might want to rethink that too. It can add a lot of heat to your tank and since axies don't have eyelids, they prefer a dimmer environment.
Hope this was constructive criticism. Be sure to post pics or your new and improved setup!