[Ned Milburn]

I'd feed some shellac into the wood before laying down another finish if indeed it is bare wood.

Yes you did fudge up. I won't pile on regarding that. But you should ask yourself, do you think you're going to be able to improve the situation by spraying or brushing a lacquer onto the guitar? Both spraying and brushing are challenging techniques on their own (specialties, really), and blending a new finish in a spot with a pre-existing finish is even more challenging.

But if you want to have fun and get experience, just "give 'er, buddy" as people say around these parts.