I don't think the rocks are too subtle, you don't want them to be too much a focus of the image, they add nice detail without being unrealistic or overwhelming. The red version is interesting, but too much IMO - maybe half way between the red and the blue? But also the previous image was brighter overall, which I liked, so brighten it back up a bit, and then maybe do a bit less red for a mix. You might also think compositionally about the amount of relatively featureless water here...
- Oshyan