I've moved around loads in the States and ended up here and have had a sleeve finished by another artist. My advice is it's better not to. It might not be in the cards to visit that artist in the next year, two or five, but the tattoo is for life. If you have a complete vision of the sleeve I'd stick to the artist that shares yours.
That probably doesn't help and I don't know any London artists. I get tattooed when I go home to visit.
Anyway, it's my 2 cents based on my own experience.
I've moved around loads in the States and ended up here and have had a sleeve finished by another artist. My advice is it's better not to. It might not be in the cards to visit that artist in the next year, two or five, but the tattoo is for life. If you have a complete vision of the sleeve I'd stick to the artist that shares yours.
That probably doesn't help and I don't know any London artists. I get tattooed when I go home to visit.
Anyway, it's my 2 cents based on my own experience.