Seeking feedback on rejected photos

Hello,

Composition is essential. 
There is also another issue you ought to consider, and that is your white balance/colour temperature. Your shots are too yellow. I assume you took these under indoor lighting. You have to account for this.

Read these links from Adobe about composition and white balance.

You have several problems with this photos.  

- you're over enlarging the files, past the limits you should be. (you did the smae with all the photos exept the train)

- all the photos have focus issues, either wrong point of focus (the frog) or camera shake (low light/low shutter spped)

I saw you're shooting with a phone, so make sure you are shooting in raw and make sure you use a tripod when shooting low light.

This will help address some of your issues

Good luck

Train1.jpg - Zoom in to 100% and inspect the sky and you'll see that it's noisy. Also, the image doesn't seem to be in sharp focus because none of the text on the sides of the train cars in focus.

Sunset1.jpg is very blurry

Skink.jpg - zoom in to 100% and you'll see the skink is not in sharp focus

Sunset. The sky is oversaturated, the foreground is underexposed and lacks sufficient details.

Also, you're competing with over 60 million other sunsets & sunrises. Even if yours is accepted, it has very low sales potential due to so much competing inventory. This is what you must compete with:

https://stock.adobe.com/search?k=sunset  32 MILLION results

https://stock.adobe.com/search?k=sunrise 34 million results

Adobe Stock customers expect the highest visual and technical quality for use in commercial projects. Read the Stock Contributor User Guide for more details.

• https://helpx.adobe.com/stock/contributor/help/reasons-for-content-rejection.html
• https://helpx.adobe.com/stock/contributor/help/quality-and-technical-issues.html
• https://helpx.adobe.com/stock/contributor/user-guide.html/stock/contributor/help/photography-illustrations.ug.html
• https://helpx.adobe.com/stock/contributor/help/how-to-submit-distinct-content.html

The Toad. The greens seem oversaturated, the pipe could be removed, and had the toad been more willing, it should have been facing the camera to be of more interest.