How do I fix the poor image quality and change from a rounded image to square like the demo,...

I am using the avatar plugin so my users dont have to create gravatars and take people off site. What I cannot do is change the rounded looking avatar image to a square one like in the demo(for the list) and I also get really really bad image quality on a high quality image. What can I do to fix this?

Is there also any way that I can get rid of that ugly grey bar that says "the talent?"