Ola,
Definitely not a “clear-cut” thing - it’s all subjective. Not that this will help, but my personal motto goes like this - if you’re going to include something, include it on purpose - in other words make sure the viewer knows you intended to include something. This, you clearly did; whether or not it works is the subjective part. I think the lily pads work - but also an abstract crop up top is just as valid - just a different image.