I've just seen this, maybe next time. I ended up going to Mac Pro, Oxford Street and Westfield at Shepherd's Bush in the end. They have a Kiko there actually and I checked it out, bought a baked eyeshadow and 2 of the eyeshadow crayons. Just got back, but I will do a more detailed report on my findings.
Sadly the Kingston store now has Too Faced and Philosophy as well as some nail polish instead of Stila.
I bought the eyeshadow trio and the new highlighter which is very pretty, in Selfridges. Again, will report back later. Must put children to bed first.