Awesome work! I like the dynamism!
Some advice for the future: don’t be afraid to mess up. That’s part of the beauty of art, and failure along the way isn’t a bad thing, it’s a necessary step to success. I remember never wanting to ink or color my drawings for the exact same reason, but I’ll tell you now that if you get into the habit of never at least trying, it’s going to hurt your improvement.
If you want to give it a shot, but you’re still squeamish about it, try digital methods! Scan your sketch and see if it’s going to work or not. If you don’t have confidence with one skill, like if you’re afraid you won’t be able to shade it right, practice shading by itself for a while until you build your confidence. And if you have that confidence and it still doesn’t work out, don’t give up! Keep doing more and more, and you will improve. Failure is your friend.
For every one amazing piece of art, there’s 1000 terrible ones behind it. Embrace the process, learn to love the mess! Keep up the good work!