Shiny beetle on Alnus glutinosa leaves
No interactions present.
The texture of the elytra looks right, and it does seem to be very blunt-ended posteriorly... but I don't think you'll get a definitive ID for this one (especially at species level). If at all possible, get several angles for identification of beetles, including a straight-down top view, and a straight-on side view; it helps enormously to show clearly the proportions and outlines.
If it is a Cryptocephalus, it's quite a nice little find. :o)
Lat/Lng: 55.6919, -2.5328
OS grid ref: NT666443