When I was checking flightradar24 today I was looking around Bangkok, Thailand and was seeing a few aircraft owned by Nok Air. I googled “Nok Air” and it seems like they have a lot of liveries. Maybe a different livery for each aircraft?
Putting in “Not my photo” is the same as just posting the picture and saying it’s yours. If you don’t give credit to the person who takes it, you’re still stealing it. So either link where you got it, or put nothing at all.