Compositional wise, it's good. What time was this taken ? If you wait till around 6pm to 6:30pm, the sun will be behind you casting strong orange rays on the scene. The higher banks behind casts a shadow that envelopes the lake making it look dark and deep (eliminating the actual yucky green colour of the lake). Check out my thread on little guilin
I find the modern buildings in the background somewhat incongruent with the classic look of the rest of the composition. I would rather choose another angle that excludes the modern buildings.