Or is it more of a cube? It is based on a rhombicuboctahedron, and uses the same technique as I used for this rhombicosidodecahedron, a variant of the hyperhedra method.
It took me ages to get the colours picked out but I’m really happy with how the yellows turned out. Bit of a change from my usual blues but definitely going to try more yellows in future!
Unfortunately I discovered when I went to photograph it that my camera now has a column of defunct pixels in the middle of the image – so sorry about the odd line down the middle of the photo!