I wondered how you could make any determination sight unseen. I would suspect the innate limitations of the Internet above all else. El Greco doesn't have a great impact on a webpage either.
Some things come across in a photo on a website, such as composition and subject matter. Color can fall flat or pick up an ugly cast. I don’t see color being able to carry this, it’s just not appealing on any level above and beyond the names associated with it and the moment in time that it represents.