You gave me the clue I needed.
I don’t have Photoshop, but I do have GIMP and I found this.
I used those G’MIC filters before, but I always applied them to photographs. I also use the Nik Collection filters (with more precise settings). I’ll take a look at all that.
About the Spanish subtitles. That will be great.
The community contribution function on Youtube will cease (or will cease soon) so I can’t make corrections to your subtitles (if necessary). However if you finally do the subtitles, maybe I can help.