No interactions present.
I have looked at the photos of Small Blues on the UK Butterflies website, and in the book Butterflies of Britain and Europe by Haatela/Saarinen/Ojalainen/Aarnio. Both sources show white rings around the black spots on the underwing.
Additionally, in the book there is this comment about the Small Blue - "Uns pale grey with small white-ringed black dots".
Perhaps I have missed your point, however...?
Lat/Lng: 42.550709221164, 2.8864431381111