Cutting Garden Inspiration

So I bought this gorgeous bouquet from the Farmer's Market this week, and I took pictures to try and figure out what all is in it so that SOMEDAY I can grow a cutting garden and make beautiful bouquets of my own. Is that enough of a run-on sentence?

Not sure about the tall spiky-thing.
Obviously some huge sunflowers and pink cosmos. I'm wondering if the orange and deep pink with white edges are maybe dahlias?
The feathery purple cone-shaped ones are sure pretty, too. And they are lasting longer than some of the others. I asked the seller what they were but he couldn't tell me.

The little purple balls are gomphrena--I grew them in a pot one year with petunias and they looked really good. They're a type of clover, I think.

I am not in the habit of cutting flowers to bring in the house, but I want to start doing it more. If I just had a vase full of flowers going at all times, it would be a cinch to pluck out the dying ones every so often and put in a new stem or two. Plus, this bouquet cost $10!! Way too much, especially since it's mostly dying off already, and it's only been 4 days since I got it. Another advantage of snipping a few from my own garden and trying my hand at arranging them.