Hi Konrad, the model is turning out really well. I managed to find the photo you are basing your model on and I say you have its spot on
Dont know IF this is actual or just an optical illusion I am seeing but the very small number on the vehicle side in the first photo "seems" to have a small bit of carrier film showing.
Not 100% about it and I may be totally wrong but thought I might flag it just in case.
Carry on and enjoy the holidays