looks like a good start to me. the nose looks a bit lumpy so it may need to be smoothed out bit. as for the wings i would start out with a poly plane then extrude the edges to get the basic shape.but i am a noobie to this so dont hold me to it.
the aircraft itself looks like a boeing experiment at a supersonic aircraft im not sure or it could be the russian replacement to there version of concorde lol.not sure really nice looking thing though