I thought you might like to see my new “Zen Visions” Set (4 prints) that is now in my Etsy store, artBJC.
Each image is also available individually, as you will see there.
I want to offer a few thoughts about framing such a set.
I personally prefer the asymmetric arrangement custom matting provides (like they are presented in the image above),
however there are many frames available to accommodate groupings of four. IKEA is very popular for framing art and photography. Another option is to frame each individually,
and arrange them on your wall any way you find appealing.
Also mounting them on foamcore attached to a square matboard, then mounting all in a square sectional frame, such as offered by Nielsen Bainbridge is yet another option.
They are readily available online and in framing shops,
and can be adapted to any dimension.
I hope you find some of these suggestions helpful.