...Yeah- I did the bra thing and hatched 2 chicks- but it won't work once you've got the shell broken.
It does not look as if its blood is retracted yet- you've got to give it more time. I like your set-up, but I think the light is going to make the chick dry out, so you'll be looking at a wet-dry-wet-dry situation and I don't think that's good for it.
Do you have any rubbermaid tubs or coolers? If you put a bunch of sealed jars of 105 degree water in a container you can *mostly* seal, then you can cover that container to maintain a consistent temp- further, you can use a warm wet towel on the bottom to keep the humidity up. Cover the container with plastic wrap or a lid and you have a fine temporary hatcher! The heat comes from a sizable thermal mass (the jars w/water), so it won't cool quickly.
I've found that when left like this, they can finish up on their own, so long as you rewet them occasionally. I fear with the light as heat in the open environment, you'll have a situation that won't allow it to finish because of the drying effect and the evaporation.