rockm, I bought a caitlin elm from Schley's and Jason wanted to make sure I knew it wasn't a Catlin but a caitlin. When I saw Mike's tree above I knew it wasn't a caitlin because they tend to be small and very slow growing. The leaves are miniature on a caitlin and they're evergreen here but am not sure about elsewhere. There'a also a 'contorted caitlin' but I don't know anything about them, except for seeing some. I thought
@JudyB bought a contorted caitlin but it may have been someone else.
Caitlin elm: (there's not a lot about them, they're not common)
https://commons.wikimedia.org/wiki/File:Caitlin_Elm_Grove_2015-06_121.jpg
@Mwar, 5 would be my choice but it looks way deep. I like the classic shape. Agree with the person who said gray would work with the trunk. Hope you can find time to make one, it would beat all of these.