L - R: Excite, Kiss, Sin, Beg, Create
Excite is a bright neon orange, very in-your-face. It looks kinda like an orange crayon.
Kiss is a plummy-pinky-brown. Now I know it looks really blah in the pan, but this happens to be a a colour I actually own, and it's my favourite Illamsqua Blusher colour. It look very brown because when I swatch it I layer it on, but with a light hand it's a pinky-brown colour with a hint of plum.
Sin is a bright plummy pink, heavy on the plum. Unlike Kiss, this one looks pretty much the same on your cheeks as it does on your arm. It's like NARS Mata Hari, but on steroids. For those who felt NARS Matat Hari didn't cut it, this one is brighter and more intense in colour.
Beg is perhaps my second favourite colour in the entire line (another shade I actually have). It's a pinky-brown colour like Kiss, but less plummy and thus more warm-toned. It's also a bit brighter in shade, and very well pigmented.
Create is the weirdest blush colour I've ever come across. It looks like the stuff you'd find in the squat toilets I mentioned in this post. Anyway, Create is a yellowy-brown, very heavy on the yellow. I'm guessing this would be a contouring colour of some sort for very warm-toned girls.
The Illamasqua Powder Blushers are quite impressive in terms of texture and pigmentation, which is why they have such a huge following. I've previously done an FOTD with Illamasqua Sin and an FOTD with Illamasqua Beg, and I didn't come out looking like a clown (or at least I don't think so anyway), so these colours are perfectly wearable with proper application.