I like the choice of subject here. I've often spent time looking at the rocks at bottoms of clear streams and rivers. You've found a good subject with the variation in pebble types, colors and sizes.
You've done a good job of capturing the light variations with water without the surface glare. However, the water has caused a bit of crispness to be lost.
The overall composition is lacking, the subject is not clearly defined and the lines of the composition do not flow.
The saturation is good, but the contrast could be bumped up a bit.
Your naturalist treatment of the subject is really captivating, you placed very well in this extremely competetive challenge.
You've already had strong entries so far, I look forward to seeing your work in the future.
needs levels adjustment the blacks arnt black enough and .. also needs white balance fix -cyan +red -blue +yellow balance magenta and green then adjust levels and saturation again
Well done. This is a setting I've always thought beautiful in person, but it's really hard to capture on film (or digitally, as the case may be). You've done an admirable job, this is pretty.
I want to swim there! it's a nice picture, but lacks something. maybe an attracting point wuold make it more interesting, like a fish, or something metallic sparkling somewhere... this way it's a bit flat