How to improve your photo
Try using the rule of thirds to place your subject. Some cameras have a setting for overlaying a grid on the viewer to help you with this. Simplify your compositions by asking yourself what the main subject is and then build up the scene around that by choosing the appropriate angle, place to stand etc
If you can go back to this spot, try making two shots out of it, if the light is good enough - one of the water reflections and the trees, the other the bridge and the sunlight. Maybe even wait for a boat to glide underneath the bridge...
Finding the right place to stand to take your shot is all important. This can be difficult when standing near water! However, taking the time to move around the scene until you get exactly what you want is well worth it.
When a scene has high contrast like this one, it's worth experimenting with centre-weighted metering (see the camera manual).