Hmmm, not sure on this one Renee,
Have you tried it in b&w?
Its not really quite working as is, on my monitor.
If it were me, Id chop just a little off the bottom to try & emphasise that its a little tree in a very big world with so much further to go before it gets anywhere near that huge sky!
... But if thats not the lines you were thinking along, just totally ignore me & Ill