Not bad man. I always appreciated tags that were done simply but the style is there. Some artists that I could reference would be like Faust or Twist from SF. You want it to still be readable, but dope like a signature. Keep messing with it, I find the simpler I go the better overall they are. Hope that helps.
Ya man practice simple ALLLL DAY, buy some dollar note books n just go to town, fill that bitch up with the same simple lame shit. Once you get to the point where your muscle memory kicks in you can then move on to style, extensions n all the extras. Keep at it man, hope that helps.
The top one is dope, but my only complaint would be the letter form on your B. I'm diggin the symmetry but it looks like 2 3 instead of a B. Maybe bring it in a bit.