At last a female tigeran,(and a flying unit)

Well, see this history first: The tigeran have discovered that they can fly with hawk wings and some magic, but for use them, they need to be flexible, the Tigeress are flexible enough to use the magic wings, so, in the war against the pandaren, the tigeran used the power of the wings.
Now see it:

one big problem with that story buddy, tigers arnt flexible... pumas are flexible, cheetas are flexible, lynx... whatever you name it, but tigers, like lions, are not all that flex.

the edges are too straight making them really unnatural
i really don't think a harpie is good for a tiger (wings + messed up humanoid?)

The yellow parts with tiger stripes need to be more detailed to look like fur.

Well, soon will be converted into a "Cheeteress", a female human-cheetah. Need a name...

i actually like ur harpy Mc !. i think that blizz really messed up on the harpy in wc3... they look retarded compared to any other picture of a harpy.