River bank scene
looks like a pretty good start. the tone on the wood of the boat is kind of bright for wood that sits in the dater all the time . and it seems like the shadows are off . the sun has set but the inside and back of the boat are fully illuminated.
Also, looks like the river runs at the top of a hill, what doesn’t happen in the nature. The rivers usualy runs in the valleys. A few montains or trees in the background just to show that there’s ground behind the grass would do the trick.
Horizon line! Your scene says it’s up top maybe even out of frame… your sky says it’s maybe a third from the top. This disconnect is giving the on-a-hill illusion. I think if you can balance this and add some focal point of interest that makes the boat tell me a story, this image could be a lot stronger. Why is that boat there? Who tied it up? Did he/she leave something or a mark? Story draws you in and takes a technical exercise into something that gets people’s attention.