overall great job, just two little points of inaccuracy.
First, the position of the jump wings and CIB should be switched as back in the 1940s airborne wings was a higher rated badge than the CIB. Today the CIB is higher than jump wings
Second, the service stripes should be on the left arm and combat stripes on the right, you have them both on the left arm.
I guess if you wanted to get super detailed you could make the oval regimental backer for his wings but in WWII it was not always worn due to supply issues, so that would be more optional. Other than that it looks spot on.