Check out these photo sets. Two sets with horizontal orientation and one set with a vertical orientation. (and less variety.)
Be sure to look at this on a mobile device or make the width of your computer browser thinner to see how they look.

A 4:3 ratio (pixels 1200w X 900h, less than 400 kB each.) Similar aspect to Ovando business sets.

A 16:10 ratio ( pixels 1200w X 750h ) Similar to Blackfoot Challenge “What we do” page.
Note how the Squarespace layout has the same width but ratio dimensions makes the height less.
Which is most evident on the third picture.

One vertical shot repeated. Just for some contrast.
To keep the file size under 500 kB, I had to reduce the width to 750 pixels.