Thank you Samee for posting model's photo.
At least two big mistakes are very obvious:
1) PAF roundel is incorrect. Actual PAF roundel is without black dot.
Here's a sample photo showing actual PAF roundel.
Image Source: wikipedia.org
2) PAF F-104s were without air-to-air refueling probe.
Here's a sample photo of PAF F-104A
F-104A 56-875 is displayed in a striking manner at the PAF Academy at Risalpur - Abbas Ali Collection