Alright, so I tried to draw a few ideas to solve my problems from earlier:

Let's see...
The picture on the top left was an idea I had in mind to 'remove' their hands and leave them with their wings only so they would look more like a bird. They could use the wings as hands instead, but I forgot that female wingtails have membrane wings and thus, cannot form a 'hand'. :/
The picture below shows the structure of the wing, just like your everyday bird you see (only with a hand included).
Below that is a little comparison between old and new.
They don't necessarily look different but the new ones look much 'bird-ier'. Notice how the new one on the top shows two eyes instead of one? If you've followed my gallery, you'll notice how wingtails only show one eye.

The frontview isn't that much of importance, but I've never actually tried to draw them at the front... xDDD
Now to the top right... hmm, the body is much smaller and he has a much longer neck. I also added 'tail feathers' now, an idea to 'hide' their so called 'pants' or 'skirts'. xDD It also makes them look more like birds, doesn't it? 8D
The probably most important part: Their legs!
Because of their legs, they look too humanoid and less of an animal. This was the hardest part to work on. I only have two ideas for their legs at the moment. I seem to like number two since that's how real microraptors are built. I also added even more feathers to their legs. XDD
The picture on the bottom right was an attempt to see how they would look like with those legs. As a result, he looks much more of an animal than I expected! 8D (still has some anatomical errors though XP xDD).
There will probably be more concepts and ideas in the future, but I guess you can judge it much better with a complete and fully colored picture...
That is all for now~ :>