I really like 46 and 42, 46 feels really Tronish which is cool!
These are lovely, Charlie - love how pared back they are compositionally - and also the textural quality of some of the back grounds - like interference - nicely presented too.
43 and 46 I like. They seem pretty vivid and intense. I am with Ryan in that they remind me of Tron. There's also something ominous about 39.