This is my first critique for forgive me if it's not enough or too much. I won't say anything negative.
Firstly, the colours are so soft and luminant. Beautiful colours used on the Pokemon.
I have not seen many good pictures with/of Medicham (because I have a weird problem with them), but this picture isn't bad at all, it makes the Medicham look pretty. I like the pulse mark on her head too, it gives her that badass tomboyish look while still looking majestic.
Lopunny's face is just plain cute! asdfgh She's probably the prettiest of the three.
Gardevoir.... asdfghjkln what can I say? Freaking gorgeous. I LOVE how she's looking away, looking calm and content all while keeping her beautiful pose and posture.