Hey, no negativity here! You dood it! If you hadn't told us, we wouldn't have known. And if you didn't tell they guys in your club, they don't know. And besides, they connected with the next modules in line - right? And the trains can pass from your modules onto the next ones - right? And the power goes from your modules to the next modules - right?
So, they're perfect!
Add some structures, a bit of scenery, and no one will ever know.
Consider these modules as being an experiment. The idea here is to jump right in and just do it! Now that you've got the techniques, the next ones will be perfect.
Bob M.