Beautiful artwork and attractive... I have a question... why the MK over the 2011 if I am not mistaken, when your name is Alex Tree? Also I think the 2011 and signature is so big that make the artwork less interesting or confusing.
MK are my real name initials... Alex Tree is a screen name I use only on Deviantart. I agree, the signature is probably overly large here... I was kind of over-reacting to a recent lecture about people claiming my art as their own. So I started putting rather large signature stamps on everything. I'm going to keep stamping things, but I'm trying to make it more subtle in the future.
You can always use the watermark that DA provide, I use it... at the end of the day copycat means you are good, people do not copy crap right? so see it as a weird tribute.