Barren Strawberry - Potentilla sterilis - has opened. The photograph shows most of the identification features: a small notch in the outer edge of the petal, gaps between the petals, and the final tooth in the leaf is shorter than its neighbours.
Single specimens of new moths keep arriving at light. This is Twin-spotted Quaker - Orthosia munda:
And this is Pale Pinion - Lithophane hepatica: