The Spectacle moth, when seen head-on, has a couple of false eyes on the front of its thorax -- said to be like a pair of spectacles.
Nature has some wonderful artistry for alarming predators and camouflaging prey. False eyes are usually a feature of lepidoptera wings.
Looking down on the back, the moth has more conventional camouflage. Wingspan 27-30mm; UK flight time May-Sep.