I've been a bit suspicious of the accuracy of the Airfix A4D nose shape since I first saw pictures of it. On ARC there has recently been discussion about the scale, with speculation that the Airfix kit is undersized. So I compared the kit fuselage to the best Douglas drawings that I have. Based on this evaluation, it looks like the overall size is okay, but the rudder extends downward a bit too far, the horizontal stabilizer is mounted a smidgen low, and the nose is in fact notably off.
Of those, only the nose profile looks worth fixing to me by giving the lower side a little more upsweep. Canting the whole nose upward would be even better.