In the picture, there are three of the creatures, flying around a base. You cannot see the face from the shadow, but from the three creatures, only one can be fully seen. It has a big head, with very thin skin, as we can see the rib cage and spine. It has no bottom half, and see coming from them are strings. We can predict that all of the creatures in the picture also look like this, it is unknown if it is hostile. It can somehow fly with no wings, and despite the name, it is bigger than a normal human.