>>9829933As far as the mold goes, the only differences are the new head, and the handlebars were put on hinges so that they can be folded down to tidy up the silhouette of her backpack a little bit. And she's not an upscale or anything, still the same size as FE. Other than that, the colors are more screen-accurate, like her lower arms and top of her hands being blue, as well as a black windscreen instead of blue. Angel Engine also has more accessories, you get the 2 giant arm blades that are copies of the FE ones, you also get 2 smaller arm blades that more closely resemble the source, and you also get 2 blasters that slot over her hands.
But to answer your question, personally, yes, I think there's enough improvements/additions here to justify buying angel engine, even if you have FE arcee. But if none of the things I listed are enticing enough for you, then don't worry about it and just enjoy your FE.