I'd call it squirrel. it looks like it might actually be a blue seal agouti (since it has a lighter, pearl-ish patch on its cheek and red tinged eyes), but squirrel is a more universally accepted color (blue seal agouti isn't recognized in any breed, so there isn't an official name or description for it. You also hear it called blue seal chinchilla and similar). It might actually be a sable agouti (in which case it couldn't be passed off as a squirrel), but it is hard to tell from those picture. If possible, could you get some in natural light? Outdoors, in the shade or dim sunlight