Having a heck of a time deciding on what to call this tessellation. Redhead. Pearl J. Bailey. Crimson Cutie. Reclining Doudette. Reeboks. MJDSV. The little black dress.
This tessellation was created in symmetry group P2; four different 180 degree rotations around a parallelogram. Have a look at the image below and you will see the highlighted parallelogram, with its four different rotation points. For some reason, the iOrnament app programmer is incorrectly labelling this symmetry group as p4g – weird.
Below is the zoomed-out version.