It doesn't look terrible. The V is from traveling to fast. Slow your travel speed down until you have a nice crecent shape. Oscillation ( the C pattern) is used to wash the filler medal into both pieces. It helps for undercut and cold roll. Try turning down your wire speed to clean up the excessive spatter as well. Looking at your weld you can see where you started your bead it is thicker then thins out in the first quarter inch, that is where you sped up your travel speed. Also try grinding off the mill scale on your pieces and that will help improve weld quality. If you have any more questions feel free to ask, this is what I do for a living.