Haven't gotten to see the pic yet, just heard about it on DeviantArt. But I am theorizing that the armors' s adaptable to its wearer, hence why Starscream's much bigger wings could fit in verses Arcee's slender shoulders. I'd imagine it can constrict down to fit a mini-con, and Miko isn't much smaller. And it doesn't lool like it has any tricks that would need mental control, like jump jets or rocket launchers. I do think Megatron's nightmares will be in pink for a while after this though.
Have you heard any rumors regarding the next episode about Miko getting her hands on (or in) the Apex Armor?