Awesome colour and design concept! The dot art you used in some places to increase the shadow-effect of the colours is amazing. The details of this picture are extraordinary, whenever I take a look I see something new.
Although the title implies that it is a scenery underwater, with the interaction of those different elements it could also be a scenery "on land". The beautiful glowing cherry tree and the background which looks a bit like the night sky are the reason for this impression.
This picture is like a window into another world. Beautifully designed, with awesome colours and with love for details created. Keep up this awesome work. <3