nice of the strobe to get in on the action in 3! First one I'm not too bothered about, but its just personal taste - if you were trying to achieve moody and menacing I think you've done it. The rest are nicely exposed but could do with having a bit more space in the frame to the left, and a touch of noise reduction as they are a bit grainy. I'd also be tempted to either clone or crop out the tufts at the bottom of 3 and just start with the taxiway.