Most of us agree that tattoo images are mostly only what they mean to you - not what they're supposed to mean to the casual viewer. Whatever image resonates those properties/characteristics to you is all that matters.
Schedule a consult with Herzdame.
Keep in mind that getting in front of a high quality artist make take some effort and a great deal of patience. This is a good thing.
A high quality artist could thicken the lines and smooth it out, but a half-assed artist will make it look worse. Proceed very carefully.
Herzdame looks to be qualified.
Never go back to that original tattooist.
For most people the top and sides of the feet hurt more than most other places on the body. I can't even fathom getting the bottoms done.
Any good tattooer will be as good on the top and sides of the feet as elsewhere.
What style are you looking for?
the trick here is going to be finding the right artist so that the two of you can strategize about desires, options, realistic expectations and such. Where do you live?
Feet are different healing because generally there is reduced bloodflow that far from your heart.
IMHO you're going to have to give it another 2-4 weeks