No interactions present.
Your oak twig could be hybrid oak. I prefer to see the foliage.
The small gall looks to have a rough surface which would make it the Cola-nut Gall Andricus lignicola. The surface is too rough for an aborted Marble Gall Andricus kollari.
Lat/Lng: 53.40745330838, -2.3355066776276
OS grid ref: SJ777901