Last Christmas I got a stylus pen for my smartphone, which I decided to test with the app "Autodesk Sketchbook". After drawing and erasing loads of scribbles and circles to get the hang of it, I finally sketched out something more substantial.

So far I like this app- my stylus doesn't have pressure sensitivity (not sure if my phone does either), but it does sort of mimic pressure sensitivity and I can change the stroke thickness/opacity easily.

Although for some reason, this picture doesn't look nearly as high-quality as it does on my phone. I'm not sure why- I'll have to try a different method of transferring the image from my phone to my computer and get back to this.

EDIT: Okay so I looked it up, and apparently Sketchbook exports images at 72 DPI, which is why it looks so pixelated and blurry. Gonna see if I can find some kind of workaround.