felt in the mood to redesign immortal horses.  
In this case, I wanted to make Celestia reflect the sun a little more, since what I recall, she doesn’t have any yellow, orange, or really any colors reflecting the sun on her canon design, which is kinda weird. ALSO, I decided to give her and Luna some markings (I think you can call them that, I dunno). Another thing about the designs is that I gave them curved horns. Why? Because In my headcanon, ancient unicorns/natural born alicorns have those kinds of horns. I also changed up her cutie mark.
 
With Luna’s design, I made her coat a tad darker, adding some black here and there, along with giving her mane a change. I also gave her the “markings” and changed up her cutie mark.
 
Celestia, Luna, and MLP © Hasbro