There is probably no silver bullet.
- It is more a double-edge question: is the image part of a duplicate series?
- If not, is the image highly likely to be a case where the model is just blinking?
Answering yes to the first question would mean there is probably (but not certainly) a better image to choose and the eyes-closed one could be culled under some circumstances (like models looking straight at the camera).
A “Yes” to the second question is similarly a case where few people are involved – to avoid genuine situations – and looking straight at the camera to maximize the likelihood to have one model just blinking.