eurowhite
Ah, that style even got a name.
I’ve recently updated my 737-900 paint to include the blue triangle through the fuselage, I’ll upload some photos tomorrow of it.
I'm looking forward to those.
I’m still not sure the “air-child” on the tail is the best approach. I will have a look and see if the coloured children can be included in some way instead.
The problem is that the new logo is different, at least the preview I saw. So it might be a waste of your time trying to match it with the tail.
I think the text on the tail, with a open-source font off-course, is quite good. Especially because the logo's colors would have to be inverted to be visible on the blue surface. So I'm thinking of placing the logo on the fuselage. With the added bonus that replacing it with the new logo would be a lot easier.
I was envisioning a plane completely covered with the same triangular blue and white shape (like a zebra) for a while but it would probably look like a dutch police car.

So I binned that plan.
I always like planes with arrows on them but it would probably look too dynamic and/or anachronistic for Air-Child.

Click Image to Enlarge
And we're not married to the paint, just like real airlines we could change it after a while.