Here is my inspiration bouquet..

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I know there are calla lillies, dahlials, roses, but can someone tell me what kind of orchid that is? and is the other green Bells of Ireland?
thanks!
Also, I'll be DIYing our flowers. Either odering online (gulp) or getting them at our local flower market.
I need some suggestions for quantities for:
1 bridal bouqet
5 BM's (small versions of mine, but an almost exact replica)
6 Boutennieres (plum calla's/orchids)
and some mild decor. Our ceremony and reception is outside so it would just be about 10 centerpieces and smaller accents for the food/cake table.