My Nana always used to say, “First Things First”. I should have listened to her. I started drawing my new boots a few days ago on my Samsung Galaxy Note 8 tablet but I didn’t do any preliminary sketches first to work out how the boots related to each other, the difference in perspective and angles. And now I’m stuck because the boot on the left of the digital drawing just doesn’t look right. So I started sketching them in my little paper sketchbook – and I still can’t get it right. So I’ll have to carry on until it works out.
Here’s what I’ve done so far. I think one of the problems is that Doctor Marten’s have soles that turn up quite sharply at the front and I’, having lots of trouble getting that angle right.
scribblah 
Cool boots! Will your marker app allow you to flip the image? Maybe a change in perspective will help see what’s at issue.
That’s a good idea but the app won’t allow it. It’s very basic. I could look at it in the mirror though, like Leonardo da Vinci used to!