the average person, applying contemporary community standards’ would find that the work, ‘taken as a whole,’ appeals to ‘prurient interest’
https://www.merriam-webster.com/dictionary/prurient
marked by or arousing an immoderate or unwholesome interest or desire; especially : marked by, arousing, or appealing to sexual desire
Nothing about the photo seems the least bit designed to arouse or appeal to sexual desire, and I don't think the average person would see it that way. In fact, I don't think the average person would be able to explain why they are disturbed by the image, which is why I'm asking the question now.
The bottom line is that the artist's intention should be considered when judging something like this, but people like OP are entirely disinterested in being fair.