Looks like bed warping issues to me, try a print with blue tape and the heat bed off and see if it looks better.

If it does you need to get an aluminum bed if you haven't already and get a solid state relay and setup PID control on your heat bed. There is a thread somewhere in the forums that I did when I setup PID on my heatbed that has some info on how to do it.


"EDIT" I somehow replied to a cached version of this thread before you realized it was your bed as I mention above"