Image imported from derpibooru 
Original Description:
 
These are fusions of every combination of each two members of the mane six. These where made by PrettyCelestia. I am Blahdalizer and Pretty Celestia gave me permission to upload her fusions. But I am deleting my deviantart account and I’m uploading these here because I want them to be preserved. Here is who each character is a fusion of in case it isn’t obvious…
 
 
Top row:  
Pegasus fusion, Rainbow Dash + Fluttershy  
Stylish fusion, Rarity + Rainbow Dash  
Frilly fusion, Rarity + Pinkie Pie  
Prankster fusion, Rainbow Dash + Pinkie Pie  
Unicorn fusion, Twilight Sparkle + Rarity
 
Middle row:  
Artisan fusion, Rarity + Applejack  
Andrea Libman fusion, Pinkie Pie + Fluttershy  
Fourth wall breaking fusion, Twilight Sparkle + Pinkie Pie  
Ashleigh Ball fusion, Rainbow Dash + Applejack  
Girly girl fusion, Rarity + Fluttershy
 
Bottom row:  
??? fusion, Twilight Sparkle + Applejack  
Power pride fusion, Twilight “Sci-Twi” Sparkle + Rainbow Dash  
Animal tamer fusion, Fluttershy + Applejack  
Earth Pony fusion, Pinkie Pie + Applejack  
??? fusion, Twilight Sparkle + Fluttershy