Sketch:

I've had SUCH an itch to rewatch Shugo Chara lately.... maybe it's partially because it seems like new merchandise seems to be slowly trickling in. Does that mean it's an anniversary year? Either way, I really hope I'll be able to fit in in again soon.... maybe after I finish up what I have left of Hunter X Hunter?
Uh... pining aside, I actually originally wanted to draw Amulet Heart and Platinum Royale's "Platinum Heart" move in keeping up with the Valentines Day theme, but the references were limited an not very high in quality, so I thought maybe just Amulet Heart performing "Open Heart", which lead me to recall the combination version from near the end of the series with my two favorite Character Transformations in the series, Amulet Diamond and Pure Feeling, and I just couldn't resist the excuse to take another crack at drawing both of them. Once again, the quality of the references available wasn't great (and it doesn't help that Crunchyroll seems to have blocked screenshots!) but after a bit of scrounging (and playing around with filters so that the lines didn't all blend together) I finally managed to get a good shot of my own.
As for the sketch, the symmetry on this one took a LOT of polishing, but I was also able to use that to my advantage to help speed up a couple of things. Beyond that, no major changes or fixes, however a bit of Amulet Diamond's cape thing and part of the ribbons from her choker had to be traced in due to cropping as well as...uh... the hands that in in back since they were completely obscured because of a glow. (You also wouldn't believe how hard it was to find a simple clipart in the correction position! Intertwined fingers was easy enough, but for some reason, finding one where the thumbs are facing outward took a LOT of digging!)
Shugo Chara! and all of its characters, including Amu/Amulet Diamond and Rikka/Pure Feeling, are (c) Peach Pit, Kodansha, Del Rey and any other respective owners I may have failed to mention or not be aware of. I o not own the series/character(s) in any way, I am just a fan!