Has anyone made or used something like this picture?

Beautiful! I'd definitely bring this inspo image to a few florists and have them help you price this out. It's looking like a lot of the structure is provided by bamboo. Are you sticking with those types of flowers and colors too, or just planning to mimic the shape?

I haven't settled on colors yet but it would likely be something in that style, the venue is outdoors and I like the organic, wild feel of those arrangements. I'll have to start having some conversations with florists. Thanks for the reply!

Yes- those are great. The height can make them a bit dramatic (in a good way) and would create a nice accent to the two of you on the alter. With regards to flowers, it would likely be easier to use some type of vine flower for the tall part, accent but larger ground flowers/plants on the bottom. You can use a typical yard stake as a base to wrap the vines around- paint it white or green or something to match your floral picks. Or, to go more natural, you can use bamboo sticks as rods and wrap flowers around that. You would probably want to get a flat board and spray paint it to use as a base and then attach the poles/rods to the base to help stabilize it and prevent it from falling. It's totally doable and will have a nice result!