First, how much of that material did you get? Just the one panel or more? If only the one panel, I would find some "Day of the Dead" fabrics...Joann's in our part of California has a good selection, or some solids which reflect the colors in the print; or some complimentary Southwestern themed fabrics.
Make a 3" border of black to surround the full panel. Around the full panel, with the next panel or with the other Day of the Dead fabrics, fussy cut some of the characters out and make star blocks of them or just basic smaller squares..... whatever works till you get to about the size you want. Finish with another border of black or grey to calm down the effect of the print so that the overall quilt isn't quite so busy.
Good luck! Show us what you do with the print.