After admiring numerous swatches of Mentality matte polishes, I had to get some of them with my latest Harlow&Co. order. Tempest is the first one I wore.
Tempest is a dark, shimmery red with a blackended base that dries to a matte finish. Application was very pleasant, two coats were enough for opacity (the bottle needs a good shake to dispense the pigments, if you don't shake it, you might need three coats).
Mentality polishes are available at Big Cartel and at Harlow&Co., where I bought mine.