One other thing to consider regarding the length of the prompt is that, as the illustrator, you can always shorten it. In fact, this can be preferable. A long prompt can result in the drawing being too rigid and even illustrating the text literally, which can lead to a boring composition.
So try picking some of the key words from the long prompt and, as long as your composition aligns with the overall meaning, it can lead to more freedom of expression with some unexpected but fitting elements and a more interesting piece.

@kayleenartlover Super fun piece, and it’s great to see you working so hard on it.

To me, the dresser does not read as white. I think there are two things that might be working together against you here:

One is that the cats and bed in the foreground do not have the same value or hue of shadow placed on them (i.e. the cats are still pretty bright orange and the bed is very blue compared to the dark greenish shadow in the BG.) I think the left thumbnail above you have is better at making the characters fit into the scene overall.
(This one seems like a stretch but I thought I’d throw it out there.)

The other (probably more prominent) is that the value of the dresser is lower than the value of the wall behind it. I know the lamp is casting some light on the wall, but the way it’s framed, most of the wall we see is quite light and to me, it makes the dresser appear dark.

Ways to help might be:

The lamp light could be dimmer, making the wall darker. I think that the main light source seems to be coming from the moon outside and this is really pretty. Maybe the lamp light being dimmer could even help the mood of the piece somewhat.

Try to lighten the value of the dresser.

Try to darken the foreground characters some. (This would be my last resort.)

Just to be clear, I do not think these “issues” take away from the piece at all - just addressing the dresser problem. The piece seems really nice and cohesive already and I like the colors you’ve chosen.