I tried, don't judge too harshly. It doesn't look quite like the original tutorial artist's but I think I've found my own style for drawing water. The one on the right was fully made with autodesk sketchbook and after doing it I found the colours didn't blend that well so for the one on the left I used Scratch for the gradient and then made it. Because of that I kinda like the one on the left better but it's a tad bit too dark and murky. Like I wouldn't swim in that one but I would swim in the one on the right. Edit: I can't believe 34 people have seen this, wow! And 7 people hearted it!! Somebody even favourited it!
The one on the left was inspired by swamps and murky bogs. The one on the right was inspired by the ocean and Hawaii because it's really pretty in Hawaii.