If that's only yr third time mig welding then you've done a pretty good job! The second picture is Excellant! Try some diffant joints & on different thicknesses of steel!
well like i said i have experience with oxy welding so as far as puddle control its not much different just faster and thanks i will try out different steel thickness and see how that works... all i did was follow the chart inside the welder but i know some guys have tips and tricks they like to share...