What always bothers me about these pictures, is that Luna is supposed to be the more battle prone of the 2, yet JJ sometimes, as well as megasweet, draw her in such a skinny body version that not only has less muscle and pudge then Celestia, but is also much smaller than Celestia. (which would actually be the only valid point in her depiction).
 
Still looks great though, don’t get me wrong, but this way it seems to me as if Luna is significantly younger then her sister, instead of just a few years.
 
Celestia looks practically like she must have been 20 when luna was born, and while luna looks about 18 years old, she looks like about 38 (a very good held 38), if you’d compare them in mortal ages.

Looking at this, it’s not princest. It’s more Luna explaining about that boy or girl she met and how she has fallen in love with him/her and Celestia is offering support for her younger sister. It’s like true siblings.

Best Sisters

Seems like Luna is jelly of something!