Rough sanding finshed

The first I did today was finishing the hood.
And that was the end of the rough sanding and filling.
Until now I was sanding with 40 grid paper.
Next I applied the finishing filler, it is finer of structure and gives a smoother finish.
After all the filled in parts were filled with finishing primer I started sanding.
And at the end of the day the rear left quarter panel was sanded smooth with a 120 grid paper.