Puzzling

I have been struggling with my Christmas jigsaw, the Hogwarts Marauders Map.
I think it’s the most difficult one I have attempted as all the pieces are the same colour and they all seem to fit in each other’s places.
All the edge pieces are blank and the only clues are in Latin in the smallest writing, you would need a lens to see it!
Overall I am quite pleased with how far I have got and I can’t give up now!!