we've had some discussion about it ...
Interesting video, but I'm not totally convinced. Sure if you stand far enough away, you can see the vague features of a face, where the witch's head and the cave to the right form the eyes and the cauldron becomes the mouth, but most of the "investigation" presented here aeems to amount to little more than supposition and guesswork. Our brains are predisposed to identify faces from the moment we're born, and thus t's very easy to see faces in all sort of things (such as all those examples of people seeing Jesus on a slice of bread, or in cloud formations etc, not to mention the infamous "face on mars" which simply turns out to be the effects of light and shadow on the landscape...
Yes other artists have put faces in their paintings, but the example cited here with the face in the bubble is clearly a deliberate artistic choice rather than some sort of secret hidden artifact, and in fact it forms a key part of the overall composition, which is why the woman has a slightly startled expression and why her plaits are at such a strange angle (she sees the face in the bubble and immediately jerks backwards in shock, causing her plaits to hang momentarily at this angle, similar to the effect you could achieve photographically with a fast shutter speed)
Also, when it comes to the interpretation of the "face", we can ask the question is it the face of Jesus, or that of Waterhouse himself. My own feeling of course is that "there is no face" - much like the spoon in The Matrix, it is put there by our minds rather than actually existing in the first place, but if we concede that there is actually a face there, then it's unlikely to be Jesus, as Waterhouse did not paint religious images, rather turning his attention to mystical and mythological subject matter. Also, I'm not aware of any contemporary accounts suggesting that he may have been sufficiently narcissistic to actually put himself in one of his works.
So I remain unconvinced, but as with all such things, it's a fascinating idea, and Waterhouse has always been my favourite artist from the Victorian era, and I own large (roughly 80cm x 60cm) prints of two of his most famous paintings ("Hylas & The Nymphs", and "The Lady Of Shalott". I also have a smaller (approx. A3 size) print of "Miranda - The Tempest")
Also, as a final point (not just regarding this video, but also the much wider discussion of Waterhouse, he was not
technically a pre-raphaelite, despite being labelled as such by many commentators. He was born at around the time that the true pre-raphaelites were producing their best work, but he was definitely from the next generation, though of course he and many of his contemporaries more or less copied and expanded upon the pre-raphaelite style which is the source of this common misconception, but he was not actually a part of the genuine pre-raphaelite movement.
(Yes I know that's a nitpick, but it's worth mentioning I think)