tracings in brushes

I read about the "brushes" ipad app so I've been trying it out this weekend. it allows you to draw in layers. so far I've been roughly tracing photos from my photos collection to practice and get a feel for drawing lines and objects & people. I know we should do more freehand drawing, but i get quite disheartened that mine don't look like the original, that I don't feel like doing any more. with the tracings, i can see the image coming through and it's teaching me to see the shapes better, and to select which lines and shapes and shadings to include and which to leave out. i think this is half the battle of drawing - deciding what to include and what to discard that still gets your message across. I'm using my finger to draw with and still getting the hang of the app's brushes too, so even though I'm tracing, it's still not looking exactly like the original. but hopefully it's training my hand eye co-ordination a bit (more than not drawing at all). here's the first attempts.