https://oneclickhangar.com/oneclickrepaint/share.php?id=xRUlIL0UZievyfGbTCiYThis C182 is probably based at Sea-Airport Cuxhaven/Nordholz (ETMN), a civil/military facility close to Bremerhaven. There are no images there that I've found so far (it is a fairly new airfield to civil traffic). It could also be at Flugplatz Nordholz-Spieka (EDXN) that is immediately adjacent.
There are also a lot of repaints here for this aircraft (including one made a year ago by me), but this one is different for having flags and text applied, and using the new ability to italicize/shear text and to arrange it on a slight slope, or a steep one!
I have not added a registration using the facility for that, because D-EENN has the registration sloped differently on each side. One-Click repaint helpfully arranges the slope to be the same orientation (both forward or both rearward, as most aircraft have) but D-EENN has one sloped forward and the other rearward. So I added it using the text element facility.
This information is only useful for someone that might want to dabble in some repaints - so I expect it will fall on deaf ears. But I have to try!
https://www.planespotters.net/photo/853746/d-eenn-private-cessna-182t-skylane - starboard
https://www.planespotters.net/photo/1287281/d-eenn-private-cessna-182t-skylane - port