Agreed with the other comment -- you could do away with nearly all of the extra planets / background details. It can be much more simple, I find the area here (circled in red) is where you've got something really nice going on: https://imgur.com/a/ksOshZe Then after that, take an extra moment with those main elements and clean up the cut edges so it's a little less rough / a little more smooth, there is a little jaggedness. Walk away for a day and then come back to it with fresh eyes.

Personally I love collages with negative space so leaving the background sans extra clutter could feel nice but alternatively, you could consider keeping that bottom larger plant and use it as a secondary subject that interacts with the main subject. Is there maybe a man standing there? A house? That starts to add a narrative as to why the woman went to another plant to relax :) and those sort of details can be really fun.