Caribena versicolor sling

You've just got to love those little blueberries!

But just to be sure... how do you keep her?
The substrate down below looks awfully wet, and I can neither see any cross ventilation nor some cork bark or such extending from the bottom to top for her to climb on, relax or hunt.

@Thekla this is what I received her in and was rehoming her... hence the lid not being visible or the rest of the cup and her being easily viewed to take a picture. I assure you she is living her best life in her enclosure she is in now. Thank you for your concern...