I recognize the bunny right away from old Mimbres pottery..... The tile looks like a newer homage to that tribes designs.... PS.....I know Ptthhhhhh about pottery...but have dealt with many Minbres style jewelry items.... Pipestone...just a company name..
I agree with komo as well. I don't know of any eastern US native art style like this, so "in the style of" Southwest cultures seems right. These images would be designs on pottery and not petroglyphs.
They've even imitated the cracks always found on Mimbres pottery.The real thing was prohibitively expensive 30 years ago.Some of the most beautiful graphics ever created.