Woah. I can see there's been a ton of care put into the layout of this game. It's got an interesting interwoven design that is sometimes disorienting, but in a way that becomes part of the challenge. I thought I was stuck after collecting the heart, but luckily there was this odd ledge collision that just wasn't reflected visually (pictured below).
I'm really impressed by the presentation too. From the shapey sprites to the floating particles that seem to flow in little eddies. Also great music choices!