Hi @Hazlanhamz , the first photo is not real sharp and the branch in the lower right should be removed.
The second photo has underexposed shadows and over exposed highlights.
The third photo is not focused and the highlight area is blown out.
Many thanks for this feedback.
Smartphones are convenient and easy to use but those onboard cameras are not ideal equipment for Stock photography. You will have a lot more control and higher picture quality (< pixel data) with a dedicated DSLR camera.
Image #2: Foreground is too dark. The white balance is too blue. There are noticeable issues with noise, blotches & lost details no doubt caused by the low light conditions and a low megapixel camera.