This image is displaying some lonely mountains dividing mare Imbrium (on the east side) from Oceanum Procellarium (on the west side).
Find Harbinger mons in the low-left corner, Delisle mons in the middle-right and the two Gruithuisen peaks on the top side.
The dark halo in the bottom-right corner is caused by dust.
WOW!!!! These really are fantastic images. I think you better start hiring out your space telescope so we can all have apeice of the action.
Just Brilliant!!!!!