Well, if nothing else this is a prime example of why CMs are paid what they are.
Most of them know what they're doing, not all but most.
You asked if this can be removed and get you back to your original finish.
The odds are not in your favor.
A good solvent may remove the paint you've applied but any solvent strong enough
to do that may have an adverse effect on the orig. finish.
It's impossible to know for sure without knowing what the orig. finish is.
DO NOT SAND ON IT. Any sanding you do now in an attempt to remove the paint
will leave scratches in the orig. finish, which I believe you're trying to now save.
Assuming you can get all of the paint off, the orig. finish, if still intact,
will most likely need to be buffed & polished (by someone who knows what they're doing).
The longer you wait to remove the paint, the harder it will become and more difficult to remove.
Remove it while you still can.
If damage is done to the orig. clear-coat it can be re-cleared.
Go through the orig. clear-coat and you will have major problems.
I wish I could give you a more positive outcome. I have some doubts.
You really need to find a competent cue-maker to do this right.
I know it's not much but, HTHs, KJ
PS: Dude, seriously, your avatar is killin' me.
How am I or anyone else supposed to stay in focus with that going on?
It does make a compelling argument though for some enterprising CM to want to move there.
Update:
It's either the fuzzy pics or my eyes are actually as bad as I think they are but the
more I look at this cue the more I start thinking, "hey, it ain't all that bad considering".
It's by no means a professional job and I do see a professional refinish in your not too distant future,
but the cue is still very much playable. Knowing you're going to get some work done at some time, go ahead and play it.
Then, if you've got another cue and you're ready for it to happen, go ahead and send it off to be done.
You may be pleasantly surprised when it comes back.
KJ