Within WikiMedia I mainly contribute to Commons, though previously was active making additions and edits on WikiVoyage. Occasional minor edits on Wikipedia.
Imges & videos uploaded PsamatheM Uploads
https://psamathe.net/contact/ (web form) or leave a message on my "Discussion" page.
The majority of my uploads are processed from raw formats. If others seek to make improvements, making edits from lossy formats (e.g. .jpeg or .mp4 or .WebM) will result in lower quality images. Best to make non-destructive changes to the raws so if changes are necessary, contact me so I can make the changes or can provide the raw image file.