Wowzers! great quilt!! I bet that was very tedious to make it.
First, do you "need" it to be bigger?
For me, I see it as is, plus a black narrow border, a little wider than you mentioned.
Perhaps 2" or so?
Then a black binding with a multi-fabric flange.
If you "need" it bigger, agree with Tartan.
Lay some fabrics and photo, to get a sense as to how it would work out.
Do you have enough fabrics to do them in the same square sizes as the blocks?
That would flow well with the centre of the quilt.
... though would make the quilt a wee bit bigger yet.
Last edited by QuiltE; 02-18-2021 at 11:14 AM.