I like your 
Kobac ... early-model MiG-21 meets MiG-23  

And your Fairey 
Fantôme monoplane is very tasty! And plausible   

One that I can't identify is your '49C' ... although it has a decided Émile Dewoitine vibe going.
Also like your 
Twin Defiant (although she looks like a large tail may be in order). Are those 
Peregrine engines?