Here's another quick Kiko swatch. It is not colour accurate at all, unfortunately! My camera just can't capture this type of blue well.
If you know how Nails Inc Baker Street looks, this is very close, but I would say just a smidge brighter. I also think the formula is nicer and the brush is definitely better (almost all of my Nails Incs had funky brushes, irritatingly).
Imagine it to be a bit darker and richer, more saturated than even this picture. It can look different depending on the light! One of my favourite polishes at the moment.
I already sold my bottle of Nails Inc Baker St so I can't do a comparison :x Sorry...