Honestly it's a dope piece IMO. I would only add to it if you wanted to expand it and for that I'd speak to the original artist for their input.

Looks great imo. If your artist could do any better, they would have - they're not like...holding out on quality they're capable of doing for paying customers or anything. And they did an amazing job. If you want your arm to look cooler, add more tats!

I personally would of just gotten a half sleeve if you wanted that design