Zoostuck 2

you're going to have the main character turn into a rubber tree, and the subliminal message is kill all trees then yourself

This is your first thought, but it would fit too well in context. Nobody would think it was a secret message. Besides, deforestation is already a serious problem, and you've got nothing against this Yourself guy.

The rubber tree thing should be a good surface story for the update, though. You'll just need to downplay the subtext so you can actually get rescued. Now, what's the proper message you want to pass along?

The tree is a metaphor for your immobility, the saw-edged leaf a symbol for your freedom. Your impressionist technique can tolerate mistakes, for they are part of the canvas and part of the art.

Maybe you should go into sculpture.

Oh, there we go. That's a much better deep meaning, and it's more likely to catch someone's attention for how subtly out-of-place it is. Hopefully this secret message will actually lead someone to rescue you. You were sure that last week's worth of updates were going to do it, but you haven't seen any rescuers even though your captor vanished.

You are now that guy who was going to rescue the artist. You kind of trapped everyone in a painting to save them from a train crash, and somehow the bad guy hasn't destroyed the painting yet even though it's been quite a while since you pulled everyone into here.

So how are you going to get out, and how are you going to rescue that artist?