Great job catching the action. A different approach to catching the 'cliche' water splash/droplet. I gave you an 8 because these are a bit tricky to catch and because you chose a different subject (the algae) to get your shot.
There's a small algae pond near that my kids love to toss stones in. I like how the algae slopes (rim of the volcano) in around the splash. Great color, love the touch of red plant and bit of grass rightback of splas. The algae could have easily been over or under saturated, but you made it right on. Great study...
Cool shot. Really makes you wonder what just plopped in. The green seems a bit washed out - maybe for time of day. However, I know how hard it is to shoot swampy areas. really great shot - love the composition. 9