>>3888109>>3888110D7000 has the same sensor as D5100.
The difference isn't as dramatic as you'd lead people to think and it'd be hard to discenrn in an A-B setting.
The GM5 is 16MP, try comparing the Olympus OM-D E-M1 Mark II instead that has the same sensor as I mentioned. In particular the Nocticron 42.5mm from Panasonic scores 16 on sharpness.