I actually really liked the zeppelin version, but going off your newest one: This image feels off, and it's because of the background. By looking at the lamp, and her head, we can tell that, if this was a photograph, the camera would be pointed upwards. That worked really well for the first two versions, showing off the zeppelin in the sky.
However that means that the horizon line is way too far up in your third painting, in fact, we shouldn't be seeing anything but the sky, possibly, some trees.
The challenge this time is foreign land, right? I think you should either stick with number one or two, or you could possibly change the third ones background to a cave, or perhaps an abandoned castle. That could allow for some really interesting ceiling designs.
Nice work so far, keep it up!
