I like to use stacking and do it quite often. In this shot because of the moving water I would not want to stack because of the way the water has an Un-natural look about it. Was your intent to have a different, possibly a smooth water look? As for sharpening I always do it after the stacking was competed. Because of different settings per photo sharpening I don't think the software knows exactly what to do.

I took your picture and used a simple correction using Photolemur 3 software. Then in Photoshop I made two sharpening layers using High Pass filter. One just for the foreground greenery and a second stronger setting for the remaining picture. This didn't do anything to change the water ripple effect. I don't think this is the look you were going for but please let me know.

Going back to the main reason for my reply is I don't suggest doing anything to the original pictures before the stacking is completed and merged.

Different parts of the image were responding differently so after some global adjustments I resorted to selections. The final amount of vividness is a matter of taste. The image is brighter overall but the shadows are only moderately brighter. And much of the haze in the original has been dealt with. I originally had it brighter but when comparing it to the original I decided to drop the brightness a bit. When I ramped up the contrast the whites needed much more subduing than the blacks.

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It looks like your main adjustment was to lift the shadows, which has worked in the sense that more detail is now visible. However, to my eye the image is now lacking contrast, and the brightening seems to have introduced a greenish tint to the rocks and water. It also seems to have lost some of its naturalness. It's natural for rocks in rivers to have dark bits.

I'm left wondering if it needed as much brightening of the shadows as you've given it. If you think that it did need all of it, you could try adding more contrast, and if that re-introduces too much darkness to the dark end you could try lifting the blacks instead of the shadows. In more general terms you should be able to add a significant amount of contrast if you work the blacks and whites to mitigate the extreme effects of the added contrast. And if you do add more contrast you may find that the saturation levels of some of the individual colours need to be reduced slightly.