yea, you should go ahead and scrap it... mainly because it makes me feel inferior as an artist, haha!! you (if the portrait is accurate) and your portrait are beautiful. best of luck in your future pieces.
its looking like a 3D model.. but u mentioned painting and airbrushing and that means... you are cool painter.. congrats!! i wish i could be talent as you are with my sketches :/ anyway.. i love it too much congrats again