Hi! I think you should try to add contrast, especially on the left temple, and make the dark areas on the foreground more black than grey ( I guess it's contrast too). After that I'm sure it would be stunning
I think this is an unfinished piece so it's not wasted. But if you want to leave it this way, it's up to you. I wouldn't recommend you throw it away calling it a waste, no, it's out of the question.
You can give more details. I can see the vegetation, for example, is a little bit blurry in some parts. I'm not sure what they are, either trees, small trees, shrubs, or... Here I think you can add a little bit of a fog, myst, or whatever, if you don't want to detail it anymore, like you did in the left side of the painting. Also the right side of the painting, overall, needs more detailing because it's uncertain what is going on there. Also, the shadows I think they're kinda flat, I mean, only one shadow, only one value is present there.
I also think that a painting has to tell a story. It's really valuable this way.
Thanks for the feedback. I did give up and lost interest on this piece. I'll consider what you said, but I think I learned what I can from it and instead will most likely put those skills towards a piece that has better composition. I'll also take your suggestions and use those on my next piece as well.
I guess you can leave it the way it is and consider it just an exercise, or you can improve it and make this one ^ a better composition. It's up to you, like I said earlier. You can do whatever you want with it, but don't throw it away. I think you should put it in your portfolio of artworks if you have one. If you don't have one, consider building it right away, if you want. Anyway, who knows when and if you'll revisit this piece in the future.
There's lot's of good texture websites out there, but I really don't frequent them very often unless I need some sort of pattern. The patterns that can be found in nature are much more easily created with brushes.