On the verts, point the wire a little more uphill, crank the wire speed up slightly and move down a tad faster.
On the horizontal, slow down your hand travel rate, keep the wire in the puddle slightly longer and turn the heat up a few amps or the wire speed down slightly.
ON the crappy one that you didn't prep. Do I really need to say what to do there?
Oh, until you get really good, start using both hands to steady the gun.