Image imported from derpibooru 
Original Description:
 
Here’s Mario with his pony friends Twilight Sparkle, Starlight Glimmer, Rainbow Dash, Pinkie Pie, Fluttershy, Applejack, Rarity and Spike the dragon they’re exploring inside the cave and then they show him the tree of harmony, it is the beautiful tree in all of Equestria. It has the elements of harmony with it, Twilight tells him about the tree!  
Background used: The Tree of Harmony  
Vectors used: Jumpman Redone Pose Odyssey Render (Default Mario) Twilight Sparkle (Alicorn) Rainbow Dash 3 Vector #362 - Pinkie Pie #21 [Vector] Starlight Glimmer #3 Racing in Floodlights/Vettel’s Revenge [Vector] Applejack Fluttershy’s Irresistable Smile Vector #360 - Rarity #16  
Wings used: Layla (Aisha) Harmonix Wings