Wow! Thanks everyone for commenting my creation!
LEGO Train 12 Volts: I didn't even knwo that this door was a rare part! I've had in when I was just a child (don't remember in which set though)
Legoless: as a francophone myself I've never had the problem - of course - so I can't say. But in general, I feel like Belgians are quite friendly people (in both regions). But that's true : each time I speak with a Flemsih, even if I start to speak Dutch, he/she will answer in French.
In some way, I would not be astonished by what you say because most of the francophones (frome any country) feel like French is a very important language, and thus barely speak another language (like many Spanish or English-speaking people).
Odyssey: haha! True! Brussels is a weird city where you can see awful concrete buildings built next to a beautiful monument! But in some way, I like my town like that
Wout: you are right! I corrected it