Masonry layout will show images of actual landscape and portrait picture perfectly.

Masonry Gallery Pagination Shortcode:
[galeria layout="masonry" columns="4" image_number="20" show_social="yes"]

Masonry Gallery Infinite scroll Shortcode:

[galeria layout="masonry" load_style="infinite" columns="4" image_number="20" show_social="yes"]

Masonry full width, no gap Infinite scroll Shortcode:

[galeria layout="masonry" full_width="yes" image_number="10" load_style="infinite" style_class="no_gap" show_social="yes"]