where do they come from

So, here's my lastest delema......
Okay, so not so much a delema, and a query. Scrool all the way down, looka t my kids between 6 and 12 weeks, and tell me, do any of these kids look alike? Some families, you look at the kids, and say "oh, that's a _______ kid" Insert a last name. Maybe i just don't see them the way others do...... What do you think? 1 of 5, and 2 of 5 don't look like they are even swimming in the same gene pool. 3 of 5 and 5 of 5 have similar features. But, not close enough. 5 of 5 looks like her dad to me, but everyone says she looks like me. How would that happen. And 4 of 5..... do you include her in this? She didn't have very strong Down's feature until about 1 year, so she looked a bit like 2 of 5 for a while. Oh well, i guess it doens't really matter, it was just on the brain.