The airport shot is crisp, has an awesome angle and positioning. I love the simplicity of it, yet the 3 men facing the other way gives it enough character and ties it together. As for the other pictures, you've got a good eye for photography. I like that the pictures are all fairly clean and simple.. which are definitely some keys to good photography. My only complaint is that it's just not interesting enough. Colors are dull, and the pictures lack Depth. By depth I mean a story. Good photography evokes strong emotion, tells a story, brings you in. While the other pictures are nice to look at. that's about it. They don't draw you in. So if you concentrate on telling a story.. and bringing out emotion while still holding onto the fundamentals you already seem to have; Simplicity, Clean, and Great Perspective... You will up your photography game 100x.