Sakura of the heart

This is absolutely fantastic! The warm tone that you used to make the sakura shine is completely superb. The dark tones are just perfect for the composition.
What I guess I like so much is that the drawing doesn't have a light source. All my thought is on the beautiful sakura tree. <img src="e.deviantart.net/emoticons/l/l…" width="26" height="17" alt="" title="Love"/>
To make it have more "elegance," I suggest to add some tones in the background to make it more softer. The black tone in the right bottom corner is a bit too obvious. This sakura tree would look wonderful in an isolated space, with a balanced (dark) background.
It is a beautiful and sensible composition, very enjoyable to look at!