Cute little faintly Lovecraftian polyp.  
Note to self: Fluttershy probably immune to cosmic madness given the right context.

@DanielTepesKraus  
It appears to be an Oefuanur.
 
As in, the red creature is an infant, and the taller blue-cloaked one its mother, according to Jowybean’s description.

From source.
 

 
Last of my weekend commissions :phew:. One of the most strangest weirdest commissions I have got to date :shrug: but lucky for you the artist and commissioner :iconjazoijua: gave a really informative story behind this mini comic of….. sorts ;^^
 
Its a alien race that he created based on this drawing by :icongorrem:.  
gorrem.deviantart.com/art/Tour…  
he has put them in other fandoms like invader zim, dragonball in the past,  
In mlp they are called Oefuanur and happen to be passing though the star system that equestira is located when they suffered problems with the life support systems and had to make a landing on equestira.  
As they made repairs in the forest far away from the primitive life forms that was detected before landing.  
Among the crew was a mother and child, the child was told to not roam away from the ship, but like all children decided to explore and got lost.  
While taking a walking looking for a lost chicken Fluttershy found the strange child and took it home.  
The following day her friends arrived because they where going out to the local fair that had arrived in ponyville.  
Fluttershy shown them the alien child, none of them could work out what is was, was it plant or animal.  
Twilight asked if she could study it and perhaps try and communicate with it, her friends except fluttershy want to the fair.  
At the same time the mother discovered its child was lost and went looking for it, causing a panic and fear among the ponies it encounter.  
The other main six uncounted it and it was pinkie pie that realized it was the mother and led it to fluttershy house.  
And the mother and child where reunited and left with the main six following behind to see them enter the ship and watch it lift off and fly into space

What. The hell. Is that?