beautifully you have done this. but only two different exposures can not do a better job every time. three to five shots of different exposures can obviously give you better result. you have done well to capture the high dynamic range of the scene but still there is a lot of space to work with like the foreground shadow area is a bit dark and you can also consult the histogram, there is a lot of tonal density at the left side wall as well as there is clipping at that wall. you can also do this kind of work very easily. you can capture a raw image and consult the histogram if there is any clipping at the right side wall of the histogram or not. because lost detail at the highlighted area can not be recovered. then you can convert the raw image by using any raw image converter many time by several exposures and then merge them together at the digital dark room. the horizontal level of this image is also not right. you should consider the water level to correct it. i have uploaded a modification and corrected the horizontal level and made curves adjustment to reveal the shadow area. Hope you like it, somnath

beautifully you have done this. but only two different exposures can not do a better job every time. three to five shots of different exposures can obviously give you better result. you have done well to capture the high dynamic range of the scene but still there is a lot of space to work with like the foreground shadow area is a bit dark and you can also consult the histogram, there is a lot of tonal density at the left side wall as well as there is clipping at that wall. you can also do this kind of work very easily. you can capture a raw image and consult the histogram if there is any clipping at the right side wall of the histogram or not. because lost detail at the highlighted area can not be recovered. then you can convert the raw image by using any raw image converter many time by several exposures and then merge them together at the digital dark room.
the horizontal level of this image is also not right. you should consider the water level to correct it.

i have uploaded a modification and corrected the horizontal level and made curves adjustment to reveal the shadow area.

Hope you like it,
somnath