How the fuck do I get the angle right? It has never been my experience to have a dish in front where it's super puper obvious what exactly is worth showing.

pic attached is one way to go about it, escpecially with lunch boxes where every slot should be shown, but is there a rule of thumb for angling? should i just go along with my guts on it? can't help but feel that i could have done a better job of a dish just by tilting the plate a tad.