I would say keep the new mid section and the old sides.
p02 looks different than the other 2. Was that intentional?
I think it's best to keep all colour combinations equal. As the Bricklink page states, this is molded highly random (intentionally so perhaps even). Most of the official Lego renders have an identical pattern too (except 4260510 but 4508430 has the same as the others and the same combo).
To me that feels like it's implying a different mold, which it isn't.
p02 looks different than the other 2. Was that intentional?
I think it's best to keep all colour combinations equal. As the Bricklink page states, this is molded highly random (intentionally so perhaps even). Most of the official Lego renders have an identical pattern too (except 4260510 but 4508430 has the same as the others and the same combo).
To me that feels like it's implying a different mold, which it isn't.