There are endless possibilities! So you need to get a bit more specific in your requirements :-) It's a rather small garden so size will be a concern...how tall and how wide tree do you want? Is it for producing shade or for privacy? Do you want evergreen?, flowers?, fall color?, attracting birds?, producing fruit you can eat?

Looks like 'Forest Pansy' redbud.

Yard is correct. You may want a taller tree, such as Crimson King maple, for shade.

I listed the plants used in the rendering.

Do not plant a Crimson King maple in that tiny yard! It will completely overwhelm the yard and as it matures, the roots will make it impossible to grow anything else, including grass. Nothing larger than a redbud.

Crimson King is also a variety of Norway maple, whch are considered an invasive species in many areas. Also aside from the size, which is significant (more than twice the size of the redbud), the density of the canopy and its very dark coloration is oppressive.

There are scores of other, smaller and more attractive trees available for your location. Just visit your local nursery to see what's on offer.

Working from home for who knows how long. My son planted Cannas and tulips. I hope they will eventually come up. I know I am late, but like my mom said, better late than never. lol I still want Doug's design.