Enjoying the exchange of ideas - MANY good suggestions above.
I especially like the suggestion of sweeping curves that don't run parallel to the wall or table edge - it will greatly enhance the visual appeal.
Your folded dog-bone plan looks interesting - a combination of running and operations if desired. Some find loop running to be tedious, but it depends on your interests - if you enjoy focusing on creating scenery and details, it can be satisfying, but it's YOUR choice. Just be sure to have a comfy place to sit. And don't expect to create the perfect plan the first time around. Also, consider storage and accessibility for the items that aren't on the layout.
@The Bellcaptain - Based on the road name you've chosen, I'm wondering if you're located in northern Indiana. I grew up in South Bend. In case you aren't familiar with them, there are several interesting clubs and other resources in that area - I don't want to clutter the thread with the details, especially if you don't need them, so send me an email if I can help (I don't have messaging on the forum, and your profile doesn't include an email address).