I can see it...
Personally, I wouldn't worry too much about the bottom (where the 510
thread is), but you could probably get that out with a bit of sanding.
As for the ring that goes around the Squape and across the logo... man, that's going to be a bit tough and quite a bit of work.
You're going to have to sand that out with a 300 grit sand paper, then go progressively higher in grit... it's going to look bad while you work it out... you'll probably need to sand the entire outside of the atty so that everything stays even. You should start with 300 grit, then 400 or 500 grit, then 600 or 800 grit... etc. until you are satisfied with the results.
I'm sorry to see that you've damaged your brand new atomizer, and wish that I lived closer to you. I'd absolutely help you work it back to it's original condition! You just have to think of it like doing bodywork to a damaged car... take your time and pay attention to your details... it WILL look worse overall when using the lower grit papers, but you have to look past that. The reason for the progression in grits is the lower grit will remove the damage. Then the progression will remove the damage caused by the previous sanding. Eventually you'll get to smooth and polished.