So Dusk Sun and Dawn Star? Didn’t like their design. So I changed them up and they’re much better now. They even have a full description.
 
NAME: Sunlight  
SPECIES: Unicorn  
CHILD OF: Sunset Shimmer + Sci-Twi  
TALENT: Giving speeches to give people confidence.  
JOB: Student at Canterlot High (EQG World)  
VOICE:
 
NAME: Bluelight  
SPECIES: Unicorn  
CHILD OF: Sunset Shimmer + Sci-Twi  
TALENT: Travelling between the EQG World and Equestria.  
JOB: Student at Canterlot High (EQG World)  
VOICE:
 
SHARED DESCRIPTION: Due to them not having Pony counterparts (The closest being Adventurine and Angelite) they had no cutie mark at first. However, as they explored and found what it was like to be a pony, they got their cutie marks through doing what they loved as any normal pony: Just at a way later age than everyone else. Sunlight is a confident and happy person. She loves bright colors and wants everyone to be the best they can be. Bluelight is a bit more relaxed though, as she picked up more of Twilight’s side of the family: She loves learning, especially when it comes to Equestria as a different world. Occasionally the two come to Equestria to visit their alternate universe siblings and their friends. Though Adventurine and Angelite are from a different world and different parents, they’re still absolutely siblings to the twins.