If I had to cull my cosmetics, what would make the cut?

This post by Modesty Brown got me to pondering what I'd keep if I were to cull my cosmetic collection down to a reasonable size.

I find it relatively easy to get rid of skin care that is past its use-by date. I find it next to impossible to let colour cosmetics go. If I had to decide on a handful of things to keep, these would make the cut:

Basics:

W3LL People Narcissist stick foundation concealer.

Shu Uemura spot concealer - I have a feeling this has been discontinued. I have no idea what I'm going to replace it with - it's densely pigmented and a perfect colour match.

Shu Uemura hard brow pencil in Seal Brown.

I don't often use foundations, but I'd keep Sappho Organics Leisha (liquid) and Alima Pure Olive 0 (powder) foundations for the occasions when I do.

I still haven't found a mascara I completely love. This is one product I generally only have one of and replace regularly; at the moment I'm using Sue Devitt's Lengthening Mascara.

The cheek products:

Rouge Bunny Rouge Delicata Blush - the perfect pink/beige/peach neutral for my fair skin.

Ilia Beauty Sway - a solid gel-balm bronzer with shimmer.

RMS Beauty Living Luminizer - best highlight in the world, ever, especially for drier skin.

RMS Beauty lip2cheek: Rapture - deep red, for lips and cheeks.

W3LL People Universalist multi-use stick in #7 - a medium cherry pink.

The eye products:

Viseart Basic eyeshadow palette - 12 neutral matte eyeshadows. Nicely pigmented, blend beautifully. If you have these, you really don't need any other neutral mattes.

RMS Beauty cream eyeshadows: Karma, Magnetic, Myth. Black/brown, silver taupe and reddish copper. I love the texture of these cream eyeshadows - they are so easy to apply and wear. They do crease a little, but it's very easy to fix.

Le Metier de Beaute Penelope Kaleidoscope. I'm willing to say I can see the Emperor's todger with LMdB - once you've seen a couple of the Kaleidoscope kits, you have pretty much seen them all, and the general effects of each kit (if not the exact shades) are largely dupeable from the main line. I do really like the combination of colours in Penelope though.

Rouge Bunny Rouge Solstice Halcyon eyeshadow - semi-sheen taupe. 

Rouge Bunny Rouge Lola eye kohl - cool brown with copper shimmer. 

Sue Devitt Eye Intensifier pencils in Pointe-Noire (black) and Surat (silver taupe). 

Lip products:

Now this was hard. I've got it down to the four lip colours I wear most often, but I could easily double this number (and I couldn't let go of all of the rest of my lipsticks).

Ilia Beauty Arabian Knights - berry stain.

Ilia Beauty Neon Angel - bright pink, very comfortable to wear.

Tom Ford Cherry Lush - bright cherry red.

W3LL People Nudist #3 - sheer red balm.

I think I'd have to keep at least a couple more Tom Ford lipsticks - Violet Fatale, Black Orchid and Casablanca.