I really enjoyed the art style, it felt like jumping through someones mixed media art piece . I especially liked the use of parallax for the foreground, it looked really good.
It took me an embarrassingly long time to realize there was a double-jump, but as soon as I did it was much easier to collect things. Spending time just jumping around/falling down to a nice musical score while periodically getting insight by way of the dialog and the character descriptions was very pleasant.
This game has a "get a cup of tea and take some time to enjoy it" vibe if that makes sense. It was very well done.