Wow, this has to be the brightest Nails Inc blue I own.
Southwark is a bright, almost neon, royal/cobalt blue polish. As for the finish it's either a jellyish creme or a almost opaque jelly... that makes it a crelly right?!
As you can see this was somewhat tricky to photograph, the bright blue seemed to cause an issue with the focusing so some of the shots are a little 'soft'.
What a fabulous colour and this was only 2 coats for the swatch and it didn't leave me with Smurf fingers - result!