I'm cold and my teeth are chattering after watching that.
I complete cracked up with the rabbit head in the fridge being ignored. It will most likely be thrown out when Miya isn't around. Though I'd love it if Yuno forgot about it and it comes back to haunt her, all shriveled and moldy.
I don't think the dream should have been done the way it was so early in the series. Considering how little of Yuno's character has been shown to this point it feels just random. It doesn't really qualify as foreshadowing either because it's just too cluttered with everything for any particular issue portrayed to actually stay in your mind, but on the other hand the overall feeling might be conveyed and it certainly opens up when rewatching it later. When you already know Yuno better, all of the symbolism is very intuitive to interpret and reflects her psyche nicely (how she feels about herself, how she thinks she should make herself appear to others, what certain other people mean to her and what roles they have to her, what sides of them she is afraid of or envies, how she is uncertain about the future, her loneliness, etc.)
The feelings of confusion and powerlessnes of the state of mind of a feverish person come across well, too. But I just don't think it was a good idea at this point. If there was some way to validate putting the dream where it is and why it would work when watching the series the first time around I would rate this episode 5/5, but now it just fails. I don't see what it was trying.