You might consider these to be improvement. ..or not.
Please find 3 magenta lines (I had this blown up while I worked on it). The middle line, at the rear fender, is a much shallower curve than the other two. Shouldn't it be intermediate?
The yellow line shows an opportunity for a '57 Mercury type fender skirt.
If you carry the character line that runs through the door handles onto the boat tail it will tie it together visually. What will you skin it with?