Remember how Tessa and the other humans at the gala were just shadows? Maybe that was because those events were shown through memories, through the eyes of a drone. Tessa now, in the present, has colour and a more defined form. The humans from the pilot in the exposition sequence are also not shadows. Eldritch J's human hand wasn't a shadow. The skeletons aren't shadows. We see all of that as is, without it being a POV or anything like that.
Last summer I was on a very expedited acid come up at a music festival and my entirely unaware mother thousands of miles away was at costco and texted me incredulous at how they already had halloween stuff out for sale in the summer but all I saw was a message preview of a giant 10 foot tall skeleton with glowing eyes and "can u believe it??"