There’s a YouTube channel that I was watching one day not too long ago where the guy was posting videos of his attempts to use the software. It took him a few tries, but he finally got it figured out. I think your pieces came out pretty good - especially for your first attempts! I imagine the quality will improve as your knowledge and experience comes along.
Don’t forget to post some of your favorites in this month’s Show and Tell thread - so they can be included on our Blog for all to see what type of awesome stuff we do at the Space! 
Edit to add a link to the very first of the videos I watched on that YouTube channel that I mentioned above. The guy accidentally noticed that the attempt in this video was better than he realized lol. He's got a pretty good sense of humor for being so frustrated. ;)
I watched the other related videos on his channel after finding this one. He does end up changing his bit and settings for a completely different look. I like that he shows the bad with the good, and takes time to mention the settings he’s using.
(there are probably better “tutorials” out there, but this is one that stands out to me because we get to witness the learning process… keeping it real!)