Try sorting your photos after “views” and you will realize you have other photos with more views. But this photo might be the most viewed in 2021 only.
Also, the photo you shared here is manipulated too heavily to be uploaded to Google Maps. Only minor adjustments are acceptable.
You watermark some of your photos in ways that are not allowed in Google Maps.
I would like to inform you that, to keep Connect tidy I am relabeling your post to the Achievements topic label where Local Guides share their proudest achievements on both Connect and Google Maps.
For more details about topics on Connect, I recommend you to read this article What are Connect topics?