I also really like the work of Kazumasa Nagai.
https://readymag.com/designstories/kazumasa-nagai/design-as-equal-balance/
I think a single slant line might look nice - especially if it is mirrored at the top.
@MisterMikkel started
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I also really like the work of Kazumasa Nagai.
https://readymag.com/designstories/kazumasa-nagai/design-as-equal-balance/