Hi,
More information about the reasons for refusal can be found here:
Quality and technical issues rejected at Adobe Stock
In the first and third picture I think the following technical problems are recognizable:
White balance: too cool
Contrast: not enough
Saturation: too low
In the second picture:
White balance: too warm
Contrast: not enough in the sky
The composition of the picture could also play a role here, since the horizon is very high up, resulting in a black area that occupies 50% of the picture and does not provide the viewer with any further picture information.
It would certainly be advisable for a photographer to decide what the main motif of the picture should be, the landscape or the sunset, and design it accordingly. Since it should surely be the sunset, the picture should be in my opinion rather in such a way arranged:
+0jpg)
Greets,
v.poth