Masten Space has been very busy lately ... they have more posts with pictures. In one post, they show progress by having a 4-engine test, and in the comments you can see that the X PRIZE folks have noticed. Even though they didn't get the media they wanted, the picture is still interesting so you can compare it to the appearance with fewer engines from earlier tests.
After the 4-engine test, they posted another set of pictures showing the beginning of testing with a tether, and the beginning is testing the tether. It's really neat to see their vehicle in the air swaying ... it does give you the sense that it's a lunar lander, even if the real market they're going after is on Earth.