Wonderful composition and intricate detail.A couple of other things.
In the first ones, the blues seem a bit strong and are thus distracting. Eyes' sizes are a bit different, and may need to be aligned a bit more. Also, the vase is not symettrical. Hair is a bit contrasty. And background is a bit too busy, again, it distracts me from your main subject.
As for the 2nd painting, the blues seems a bit strong and too similar, ie the blues in the sky, mountain range, and overalls.
Finally, in the 3rd painting, the eagle is lost among the busyness of the trees. Maybe a bit more contrast or larger size would help.
Best,
Zeke