This may be an unpopular opinion but I find Marie & Joachim's kids far less attractive than Alexandra & Joachim's. I mean, they're not UNATTRACTIVE kids--nowhere near the Mary/Derf potato-faces--but Nikolai and Felix are both stunning young men.
I agree they are not as attractive as Niko and Felix but those boys are otherworldly beautiful. I think Henrik and Athena will grow up to be attractive, as they are happy and well loved. I don't think the Derf kids are ugly. Isabella and Vincent, in particular, are attractive kids.
ETA: on-topic: Happy Birthday l'il Henrik!