Well...
It wasnt great, you really should study Terkoiz more, which i see you have done by the looks of things, but you need to look more closely. Try making your work area smaller and zoom in by like 400% to get a much smoother brush, it worked for me and im sure it worked for lots of others. You need to review each movement over and over to see that it is fluid with the frames before and after. Just stick with it and it will all come out looking alot better in no time. :)