Aiight.
I ussually don't comment on the colored horse pictures, but I really like doing space art so Imma say some stuf
So First off obviously the moon and space stuff are at an age that is visually confusing with the water effects you are trying to have going one. But whats is also possibly at a weird angle is the ripples in the water, if they are ripples. The ripples are at an angle and ar a color that make me think that they are clouds being illuminated by the moon, and at that angle it looks like the boat is kind of sitting in jello. That fish dying a stationary death.
Next the space part, so I see you tried to portray a very large collection of stars and tried to erase the middle to give a milky way kinda feel I think a more smaller condenced sett of stars fading into the night sky instead of that bulk works a lot better. It kinda just looks like spray paint, especially with obvious Photoshop eraser brushing in the middle. Try a low opacity soft spray paint eraser brush in this situation , it works wonders. Also just a suggestion, throw some colors in there besides blue for space, throw a little green or some red mixed in there, photoshop has gradients that fade into nothing, neat ways to add colors into space using that and lowering opacity layers.
The coloring on the pone's and the background lilipads and flowers and stuff is a bit different , but i actually really like what you did with the lilly pad stuff. Its one of my favorite parts of the picture, even though the angling on some of the lili pads look like they exist at another angle so they look upside down.
The picture is cute and I enjoy it and it some ways its artistically invigorating it makes me wanna draw even though I just did , and its actually edging me closer to actually drawing a colored horse. Closer anyways.
Feel free to brush all this off as a weird guy talking about your art on the web, these are just my opinions and are by no means to be taken as Gospel