>>3131613your friend did a great job, and you're going to too!
if you don't draw already, my advice would be to not be too precious about anything. that's often a recipe for getting discouraged, frustrated, and burned out. know you have to walk before you run, so take little steps, do little things you're happy with, take that experience and move on to the next thing (even if that thing is your 1001st tamamo). don't be too careful starting out - as you're learning, quantity can teach you more than trying to make something of perfect quality. In other words, spending 1000 hours doing 1000 different tamamos will teach you more than spending 1000 hours trying to get the first tamamo perfect.
Nothing and no one is perfect right away, so it just takes a lot of doing and repetition and most of all enough interest to keep at it. Talent isn't some natural magic; it's really just having enough time and interest to practice until you improve and practice more and so on.
Everything you do is practice for the next thing you do. There's not going to be an end-point where you finally have the skill and style that defines you and then you can stop practicing and improving and now you're an Official Artist™. You're an artist as soon as you make art.