Not spending much time in the air at the moment, so if you don't go with my suggestion, that's fine.
Keep the blue, it's good.
The white should be changed. Maybe darkish grey (?).
Which ever secondary colour you choose, it needs to extend to the wings somehow, the entire underside of the aircraft and part way up the fuselage (aka the V1 skin
) stretching to the tail, where it will merge into the rudder.
Maybe? :hmm: