Art Progress #1

I've always liked drawing. I've never been exceptionally good, but I hope to become it one day.
Around the end of 2015 (almost two years ago!) I slowly stopped drawing. Still doodled here and there, but didn't put any effort into it. Here's what my drawings looked like back then!
I recently started drawing again and, honestly, it was rubbish at first. A month and a half later, which is now, this is where I'm at! It'd be great to get some feedback and tips. I've been practicing every other day and this drawing took around 20 minutes.