Sorry mate, was distracted looking at Mel's tail end!
Don't focus on the monument - not really sure what it is myself. Looks like its made of rubber!
Not a homebuild.
Edit, internet connection is very slow so only just seen your winglet drawing....no nothing like that. They are not unlike the EuroStar's, but they are bigger.
Going to hit the hay now, so will check-in in the morning.