This will be painted in Gouache on 6X6 aqua board similar to the 'Wild & Free' which I shared a mock up earlier, though I'll post the photos I have of the finished and framed piece I took before packing it for anthrocon art show.
I plan on making the background in acrylic ink and the cat will be gouache. Orange will be a little tricky as yellows/orange often are on the transparent side in the gouache brands I work with so it takes some building.
Next few weeks I'm painting like crazy to fill my Eurofurence panels.