You drew a picture of someone drowning!
What app did you use? You can get an interesting effect with the highlighters, I probably wouldn't have drawn the lines at the top and right of the sun, but continue at the edges and working your way in. Probably play with brush sizes and if there's an orange option, mix that in too.
Same thing with the grass. Draw some small lines scattered all over it too. to make it more authentic. Probably would get better results using a smaller brush for the waves too. At least for the top waves. Using the eraser and "erasing" little waves would be a nice touch and help to draw attention away from the overlapping of blues.
You asked for an opinion, and I gave you suggestions. There!
It's a good start, I bet you could draw better with something like Sketchbook Pro though.
Why is his body hanging out of the bed. Must have been a huge party last night!