Trenthany
Chumono
I came back to this after some thought and you’re right about dome not being entirely accurate. Dimes are usually a circular type shape with a massive tree and it’s next generation around it, then the next, the next and so forth. They aren’t always in the open though. One of the cypress heads I’m going to hike in the next week looking to collect is totally surrounded by oak hammocks and pines a little higher up from the water. But you can see the dome over the rest of the trees where they’ve created their own enclave. That’s pretty common in SWFL but I know the glades they tend to be isolated islands and that’s what a lot of people picture when they think cypress dome. They will almost always form that shape unless an entire forest of them are approx. the same age. If the tree had a chance to get a head it will almost always form that kind of canopy and circle because in wet areas where they thrive they usually are only challenged by water hickory (common name) and swamp maple (common name). Most other trees in these swampy boggy areas either stay stunted or fall over. I find young cypress on the edges and that’s where I’m going to scout for spring collecting.I love this piece of wood, and think a forest is perfect for it. And I love the idea of a bonsai cypress dome. But I'm not sure the wood and the dome go together.
Cypress domes are usually surrounded by a very flat landscape, and it is is the contrast between that flatness and the dome shape that gives aesthetic interest. This would call for a very shallow pot or a slab. Your wood suggests a landscape of undulating hills, with a lot of negative space on the right side--not exactly cypress dome territory.
Whatever you decide to do, I'm eager to see it!

I may have to reorder them next year before cuts. Because having an arced silhouette does evoke dome and the planting is linear. Not exclusive but more to ponder till next year! Estimated cuts are marked with blue ribbons. Subject to change of course but I put those in to help me determine my rough order before planting.