I had to search for the owl hooter build to find it. Steam engine builds I came up with all sorts of goodies that weren't Thomas' channel.
diggin it!

This is so cool that you are doing all the pictures as you go. Really coming along great.
I think after you get past the "oh s#*!" moment, figuring out how to overcome that moment can be very satisfying. And as you said, if you didn't mention it, we probably wouldn't have even noticed. Still looks wonderful.