Pokemon Anime Screencap 3rd Party Source - Official Source separately available

Regarding post #3867723 and post #3867724 , an artist named enpe posted up screenshots of the Official Pokemon Sword & Shield Twilight Wings on his twitter, and someone uploaded these onto Danbooru, but the artist himself is not the actual artist for the screenshots and he was only sharing them on his twitter.

The actual Anime is available on the Official Pokemon Youtube Channel.

Is it correct to leave the source as that artist's twitter which is pretty much a third party source, or should the source switch to the actual official Anime Episode source on the Youtube?

Please confirm. Thank you.

Considering the artist's Twitter is where those screenshots are from, then it is correct to leave the source as is, and add the third-party source tag to each post, which they already have.

Now, were the images of the posts replaced with higher quality screenshots, then it would be appropriate to change the source to either a) the online post from which said screenshots were sourced; or b) the episode source on YouTube if it was done directly. But since it is probable neither will happen, keeping the sources as they are is fine.