It's good for a first one, pretty damn good actually.
I would change the text, especially the quote, infact I would just remove that quote.
The black and white is kinda put off though cause it just removes the pure colour.
Its really not that bad for a first.. Its good that you didn't try and flood it with filters like most newer people do.
I'd try and add some clouds covering part of the render and maybe some color.. work on text / smudging and the other regular stuff.
You have a good beginning, keep up the good work.