The flower photo has a very unnatural looking transition from sharp to bokeh. It appears at first glance to be done in post processing rather than a wide aperture. Seems very distracting to me.
The star image, I'm not sure.
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The flower photo appears to be taken with a smartphone, so the camera has used post-processing to get the bokeh look, which in this case does not suit the picture. It is unbalanced. The eye gets drawn to the out of focus bit more than the main flower. So, the composition is not so good.
I also think with the night photo, the composition is not so good. The branch on the right is distracting and the silhouette of the foreground is nothing special.
Bear in mind too, that at times smartphone pictures don't do so well on stock, because of other technical limitations of the camera.
Good for social media, but at times not so good for stock.