Wait, whats going on here?
That's not exactly how you use a bow.

It also seems like she isn't even holding on to the actual bowstring, yet it's pulled back. And the awkward way she's holding the arrow... Yeah, this warrants an error tag.

When in doubt, pinkie out~

That looks like an incredibly bastardized version of the 'pinch draw' method of drawing a bow, but the error tag is so very warranted...

It's not an error, she is just one of those hippie elves that hate science.
Take that Euclid! Your evil geometry and perspective are not wanted here!