Either a white bg with relatively large margins and a single picture in the center on each page, or edge-to-edge printing on a small page size with tight crops. This design shit is neither here nor there.
The current cover design is good.
Don't put any extra text or gimmicks in there.
>>4434375this pic/style is good
>>4434360this is bad 90% of the photo is asphalt, other cars and delapidated buildings that noone cares about, just crop it
if you really need to do some kind of design/editing concept you have to keep it CONSISTENT i.e. the same style on every picture. Maybe look at some drift/phonk stuff for inspiration