As someone who has never been terribly impressed by Goya’s work, I believe that a more appropriate caption for the short video by Bray would be, “Curator Xavier Bray tries to make the case.”  

I see Goya’s skills in portraiture as being much more akin to those of the American, Gilbert Stuart or the Scott, Henry Raeburn than to the greater abilities of portrait painters who actually reached the highest levels of this specialty — van Dyck, Holbein the Younger, Hals, or among closer contemporaries, the great 18th century English portraitists or even the Italian, Batoni.  While others proclaim the glory of Goya’s portraits, too often I see little more than stiffly posed subjects depicted in mundane colors through less-than-impressive brushwork. And instead of penetrating studies of individualistic character, I much more often encounter modestly described faces staring blankly into voids. Even those few Goya portraits which are rather impressive on some levels, such as that of the Dowager Marchioness of Villafrance, with her imposing crown of hair, the artist still doesn't actually reveal very much about his sitters' personalities, inner joy, or conflicts. My eyes strain to see much more than what Goya might have achieved by painting mannequins dressed up in the fashions of the various classes of 18th/early 19th century Spanish society.  I know, I'm overstating my case, but I would contend that I am closer to the truth than those critics who are placing Goya's art on the highest pedistal only after first admiting that the artist doesn't always make a good first impression.

Perhaps Goya’s oeuvre is more impressive when many examples are seen in close proximity, but these monographic exhibitions often show the opposite to be true. And I suspect that with Goya, we will see that more isn’t merrier, regardless of how many of his portraits are making their London debut.

Further to interesting discussion regarding merits or otherwise of Goya. It strikes me, as somebody who takes a good deal of interest in British portraiture but who knows very little of the 'Continental' craft, that his 'greatness' stems from two particular factors 

a) He is the only Spanish portrait painter most of us have ever heard of*

b) His style may be odd, stiff and arguably rather bland but it is distinctive and that is important these days when for most connoisseurship has (regrettably) given way to the realm of instant impressions.

*I suspect Valasquez is far less widely known.