I think the sky has let you down a bit on this one, nice textures in the stones though

I agree....the flat blue sky dosn't do it justice...nice try, rest of capture is good

I am still new to this, and could not work out how to alter the levels in the sky......I don't like it, but at least I am getting comments, which may help me later

Lots of noise. Looks like iso setting was off. Beautiful shot though

Yes, I took that photo at the sunset and the light was low. I set the ISO 80 and the original photos are much less noisy, but after combining, seems like the noises were amplified. I don't know how to solve that so i post this photo here and wait for some suggestions from other people. Thank you for your comment

HDR does make the image a bit noisy .. a nice composition .. try reducing the noise in PS ..

Thank you hiteshnp, I tried to improve a little bit, now looks better but the quality is reduced

The best noise removal software i have used is called "Noise Ninja". It is a photoshop plugin and 10x better than cs4 noise removal.

Thank MaRkSqUiRrEl, I tried that software but somehow it's not desirable. In PTS I played with the Lab color and reduce the noise in channel. Now this is the best method that I know

wonderful detail and color, nicely done