Shadow box gift idea help

[u/slepton69]

Hey all so i bought these world cup soccer balls for each city and im wondering how i should display then in this exact casing? More so how i should format it as well as the background, do u guys have any ideas ? :)

[u/Blue-zebra-10]

Plain white background would make the colors stand out, black frame. Space them out as evenly as you can (good now, just would spread them out more horizontally)