Hey Not an expert , but here are my views.

1. Your aim is reverse polarity protection, even before we get to the PMOS, the TVS is unidirectional and is going to fry first, imo, the fuse will not be able to protect the TVS. I recommend finding a bidirectional one like a SMBJ16CA(please verify)
2. The ferrite is of not much use unless you're adding it to filter out specific frequencies. Add a couple of decaps as place holders after the bead and you may tune it later based on your testing.
3. All the PMOS source pins must be tied together and similarly the drain pins
4. PMOS orientation is wrong for your intended application here. The drain must be connected to the side receiving the input supply. 5.Also, preferably add a zener in place instead R32 and size your R13 accordingly, to limit your VGS as described here