I tried to sketch on my phone before, but that my first attempt to draw on a tablet with bigger screen. I was better than I expected, but the application which was the best one to use with phone turned out to be less convenient with more screen real estate available. The worst was the lack of adjustments for brush size, and I also realised soon that the style of drawings was defined more by the application than by myself.
It's definitely worth giving it another go with a better app. Any suggestions?