I like your style a lot - great softness and impressionism. Nice, gentle use of color
I am a bit confused by the foreground/lower part of the painting though. I cannot tell if the boys are crouching in water or sitting on a shoreline? I think the foreground needs more detail and tightening to give a stronger context to the scene.
I would also smooth out the boy's shirt on the left - kind of looks like a Hawaiian shirt - unless that's what you were going for. I also can't tell exactly which way the sunlight is coming from - maybe a bit more shadow on the boys to make that sunlight really pop and give it direction.
Hope this helpful! These are just my suggestions