This shows your very talented already. In my book I talk about the weight of light dark and colour etc. dark is heavier and always more comfortable lower in an image unless you are trying to create drama.The top plank of wood is too heavy for comfort because of the contrast of light and plain space in the bottom. For perfection the glass and bottle should be reversed or cut off the right side by about one quarter or one fifth of the width. This would make it go from good to great. The dark main area of interest is too centred. Trimming the right side would also make it less square and therefore more interesting too. It is so good like it is so you may not want to be bothered to perfect it. Your use of reflections and shine is awesome.
My book is "The Art Advantage" sold on amazon books to look inside the link is
http://www.amazon.com/Art-Advantage-Increase-Artistic-Intelligence/dp/1491227117/ref=sr_1_4?s=books&ie=UTF8&qid=1424959901&sr=1-4&keywords=%22The+Art+Advantage%22