Confused as to why my images are being rejected

You tell us why, we tell you the errors.

Looking at Puente...003: the asset is noisy so that would be quality. But there are also a lot of IP issues, including the bridge:

Nahuelbuta_003:

The asset is obviously missing focus, and there is a stain in the image that needs to be corrected:

(BTW: if you want good critiques, publish less pictures. Checking a lot of pictures takes time, and at the end, the issues may be similar).

The night view photo looks beautiful, but when enlarged to 100%, noise is noticeable.

Apply noise reduction appropriately.

Also, it's in Adobe RGB, so you'll need to submit it in sRGB.

011 - Lens flare

005 - Too many dark patches e.g; it is rather underexposed overall:

delasur003 - take note of the sky - no detail - overexposed:

nahuelbuta 010: lens flare, sun...

nahuelbuta001:

and so on.

These examples are why your photos got rejected.

The sky is overexposed in this one, and the horizon seems to be leaning.

Nahuelbuta_009.jpg

There's a lens spot or sensor spot on this one.

The sky is overexposed in this one, and could use some dehazing. I also spotted some logos in buildings which need to be removed.

PuenteDeLa4Sur003.jpg