Ha ha, brilliant- I love the combination of vintage aesthetics and space travel. Great logo, too, the retro feel of this is just perfect. What's funny is that the Europa-bound spaceship kind of vaguely resembles SpaceShipTwo's mothership, White Knight 2- perhaps tourist spaceships will really be sleek enough for retro SF art!
This is an awesome poster, catches the feeling of those times perfectly... but you know what i like best? in the Europa Air logo, the crossbar on the "A" is the Great Red Spot... I don't know why but some part of my brain loves that detail. I also like that Jupiter is shown without its rings.