Photographic Composition: changes should be hard to spot. Try to have some dynamics.
Let me focus on the first picture. I love your model, of course! she's fabulous and your pictures of her are simply delightful In the first picture, we see two beautiful eyes. Nothing wrong with that! But maybe we can have a little more?
The eyes, as shown, can be overpowering to the nth all other parts! For artistic rendering, we can emphasize or obfuscate as we wish. Still, emphasis should most often be subtle*, unless you're really having a going out of business advertisement. We'd rather that the changes the artist makes are so hidden that we don't realize what, if anything, was done. It's not only that parsimonious changes are needed but also balance.
Look far balanced distribution of centers of power. What offsets the two points of strength here? Think about the eyes as a fixed set of points. So what else is there to explore? When there is nothing, one has to really ask if there may be something you might need to do change about your processing of the image file.
Asher
*As I have stated before, I have a "3% rule". After I make a change, I want to try to reduce this to as close as 3% as possible. Amazingly sometimes I do merely use 7% of what I though necessary. Mostly I can't go below 80% but I really do try. Rarely it's more than 85%. We need to be constantly restraining our efforts as we tend to overshoot when doing one change at a time.
