Araniella opisthographa (2) is this correct

Araniella opisthographa (2) is this correct

Observation - Araniella opisthographa (2) is this correct - UK and Ireland. Description: All these micro spiders found on the outside walls of my house or shed. Puzzled by the red patch on photo 5

All these micro spiders found on the outside walls of my house or shed. Puzzled by the red patch on photo 5