yep, all freehand. practice practice practice. you've got to get the brush up on the tip and roll it around. i also trim my brush different. do a search for trim the brush or something. it's posted on here. by no means are these stripes extreme in quality, but for my level of striping i think they're good.
striping is **** hard!!! i'm suprized i didn't give it up when i started, but just keep with it and learn to trim your brush the way you like it. also try different brushes till you find the one that works for you. doesn't really matter what brush you use, just matters what the stripe looks like. good luck