Nice kit

I'd be tempted to add:

A few OTC meds (esp an anti-spasmodic and an antihistamine) - a couple of tablets can make all the difference in a crisis. I like some NSAIDs as well, but those are in the big kit I presume.

A light of some kind e.g photon

A blade of some kind e.g. mini sak, boker subcom, whatever

Again, I'm sure you are carrying these, but a bit of redundancy and being sure they are with you at all times might be worth considering

Also, I'm tending to think that a disposable poncho is more useful thatn a space blanket in some scenarios, but that's a personal choice.