LB- I don’t think we can tell much from this photo. First of all, we don’t have a clear view of the person. Second of all, that wouldn’t be enough, because we would have to be able to see how they look in their surroundings, since the issue is about whether or not they stand out. I don’t know if that’s something that one can see in any photo, but we certainly can’t see it here.
I’m also surprised by your comment. I had no idea what a bubble umbrella looked like before, but you did, and you thought they were untznius. If you already knew what they looked like, what did you gain from seeing this photo, and how did it make you change your mind?
Disclaimer: I am not trying to imply that they are untznius. I have no idea, since I have never seen one in real life (although my guess is that they are fine). I am just wondering why you are so sure that this photo is a proof that they are.