Yes, after all, she is the personal advisor of Princess Platinum, so there is nothing wrong with being noble. And it can be seen that Twilight Sparkle should respect her very much. The magic bracelet used to confirm the treasure in that episode of treasure hunting should be based on the bracelet of the four-leaf sage. For those who say that the noble temperament of this portrait does not match the ideal four-leaf sage, I want to say that the cloak itself is very luxurious, at this time, if it is a pony without noble temperament, it is not suitable for the cloak

@LuckClover707
Maybe it’s only a picture, can’t really tall what he or she looks like.

Since the pony in this picture is basically completely at odds with what we know of Clover the Clever’s personality (seriously, there is no way a pony that… mean-looking cast the Flame of Friendship) I’m going to interpret this painting in one of three ways  
Either:
 
-A snooty noble Unicorn acquired Clover the Clever’s Cloak after their death and posed with it for a painting to show how important they are. (Look at me, I wear the cloak of a legendary pony. I’m so important)
 
or
 
-A snooty noble Unicorn commissioned a painting of themselves AS Clover the Clever in an attempt to liken themselves to a legendary pony. (Look at me, I’m just like Clover the Clever)
 
or
 
-The focus of the painting is straight-up just the cloak of Clover the Clever and the snooty noble Unicorn wearing it is completely inconsequential.  
I imagine the title card for this painting reads this - Clover the Clever preferred to remain out of the spotlight and was famous for getting sick each Unicorn School Picture Day. As such, most images of Clover the Clever have their face obscured by their famous cloak, modeled here by Lady Snooty Pants. Painting generously donated by Fancy Pants.
 
 
This is based on the personality expressed. I honestly feel any interpretation of Clover the Clever’s gender is valid.

@Background Pony #7B34  
I prefer to think genderfluid and knew gender spells. But I’m biased.

@Background Pony #31FB  
That’s what I was thinking. Just finished studying Introduction to Sociology, and I was definitely informed about intersex. It is possible that Puddinghead might have been intersexed instead of being female or male.

@JazzyWaffles  
Maybe he was a stallion, but dressed up as a mare for his missions.

@Background Pony #5CE5  

 
Or the writers cant make up their minds.

@JazzyWaffles
 
Maybe Clover’s a drag queen. And look a Puddinghead:  

 
Androgyny was the style of the era it seems. It would explain why their genders keep getting mixed up.

@QueenChrysalisIsBestVillain  
Does that mean Twilight misgendered her in Forgotten Friendship, or put up an outdated picture of him in A Matter of Principals? I prefer to think Clover switched between genders on a regular basis.

I kinda thought of pony counterpart of Star Butterflys mom.

Clover the Clever obviously transitioned at some point

@ApplejackFan204  
Coming in late on this, but I know that while they share the same studio, the part of DHX that works on the pony show and the part that work on the EQG side don’t collaborate that much. So whereas Clover’s shown male in FF, if this is meant to be Clover here, that was just a matter that neither side knew the other was dropping a visual image of the character.
 
(I very much doubt Faust’s show bible consider that much of the history of Equestria to establish that).

Clover the clever confirmed for cross-dresser

This painting peeves me. This isn’t the Clover I signed up for.

Moondancer and Star Swirl already have conflicting official designs from comic and show sources. This episode just added Clover to the list.
 
I’m sure whoever created the character design was simply unaware that other non-FiM writers had described Clover as male.
 
That or they decided to depict five artifact owners with their famous artifact, and some rando wearing Clover’s cloak…

@Fwelin  
Yeah…I agree.

Come on! Make up your mind, creators!

@cheezedoodle  
And had a sex change?

@ApplejackFan204  
Yeah the play has zero relevance. Presumably after they built a successful nation Clover was able to upgrade from the humble smock.

@cheezedoodle  
Because it doesn’t look like him/her. The one depicted in Hearth’s Warming Eve was more simple looking. Of course, that was Twilight playing Clover.

@Fwelin  
There were six portraits and all of them showed the character with the artfact named after them. How can that not be implied to be Clover?

Maybe that’s Princess Platinum, since Clover the Clever seemed to be her assistant?

She looks like Marie Antoinette. Most famous for a line about cake.  

Removed the Clover the Clever tag, because no-one in the show referred to this as Clover, and we have previous evidence against it.