Portal

No matter how many images I see of Antelope Canyon, I still marvel at it's beauty.  I really like this.  There are two triangles that  take away from the image to my eye.  The top right and the blueish one bottom left.  Maybe a color clone on the blue one and opening the shadow just a little top right would improve an already wonderful image.  Regardless, nice to see an image from  Antelope.

Similar to Gary's suggestion, I might try and tone down the bright highlights on the right, upper top, and lower L corner.  Maybe some detail can be recovered in those areas in ACR?  The flow of light and shadow down the walls does make this very attractive.

The conical structure holds the composition nicely as does the more subtle stripes running up. The highlights at the right edge and bottom left could be toned down IMO.

A real nice take on an iconic spot. I would concur with Gary's suggestions, but they are minor. Real nice image. 

Lovely abstract with those organic shapes! The color gradient is nice, as are the tracks left behind by running water on the walls. The top right triangle does not bother me at all, but I agree about maybe toning the highlights a bit. Very nice photo!

Good comments above on the processing. I really like your comp Eva; excellent curves and lines in this.

From wet and green abstract to red and dry abstract...  Wonderful lines, textures, and tonal variations here of an iconic photographic mecca.  (BTW, I don't have an image of this because I have never been there...)  This is somewhat different than many typical images one sees and I like it.  The light is blended quite well.