Foogle again, not necessarily! The colours you've listed are a mix of golden and blue spring colours, so hard to say based on those. I think in general (and I appreciate I'm biased) that CMB don't explain exactly where and why you've ended up where you have and clients don't leave as clear on how to put together their colours. But then, I think it's cheaper (?) and takes less time, so that makes sense I guess. You could always go for a re-rate at HoC (no requirement to be a client, just to know your season) and you will find out where you fall under our system? It's about £45, and you can buy a wallet if you like, or keep using your CMB one.
Gilly the reason we don't go into more depth about the types of seasons is because (a) most people come to us with absolutely no understanding of colour analysis and it's too much information for them and (b) there isn't enough time to give that kind of unique information to everyone in a five hour class. For people who have researched prior to arrival and have an idea how the system works, they're ready for more information, but most people aren't, they just know they're going to come and be told what colours to wear. If any of my clients ask though, I'll always spend a bit of time talking about it - it often comes up in my classes anyway because I am a very non-typical looking Autumn, so people ask about my season. There are two style development classes, one based entirely on colour (the other, strangely, on personal style!), which is great for getting into more depth about your type of season and the way you need to put colours together. It was great for me to realise that although i'm an autumn I need more a lot contrast than the average autumn does, for example, both because of my colouring and my personality.
12 Blueprints is a different system again (something called Sci/Art), but there are similarities. Jumping you may find that the 12 Blueprints bright spring isn't you because I think it's closer to a Blue Spring, not a bright painbox spring (but don't quote me on that).
Re the style day, no need to get down to undies - 99% of my clients choose to wear leggings and a camisole, which I inform them of in their booking form so they know to bring them. Very occasionally I get some wonderfully confident women who whip all their clothes off, but not often.