I think you need to go hotter on the last picture where your starting to get the flow of it
you don't want it to hump over so much you want good penetration and have your weld lay flatter
if that makes any sense, or alternatively you can slow down a bit which in turn will put more heat in
a general area, and also turn down the wire feed.
that just depends on which speed is more comfortable for you.
hopefully some of this makes sense