Uh, I found it on a news page in my country which is about the upcoming anime film of Infinity Train. I thought it was a snapshot of a new trailer for the film, though I didn't find the assumed trailer anywhere.
If there is no further source like you said, or perhaps the image is actually fanmade, I assume that I was mistaken and will remove them ASAP.
No broken numbers/gibberish-titled pictures & no spam filenames such as "Download" or "Screenshot" or "Screencap" or "8B94-F005D99FB4E2" or "Bandicam" or "IMG" or "Hqdefault" or "Maxresdefault" allowed (see Rules). Don't forget to write down the description of the added photos (of persons, places, things, events, ect.) while uploading so you won't lose your place within your filelist.