OT Portfolio Masonry setting?

Hi everyone,

1, Create a portfolio post: 

* Important => selected the thumbnail size => upload an image with a corresponding proportional image size:

- Normal size: 463x308 or bigger

- Double size: 936x626 or bigger

- Double size of width: 936x308 or bigger

- Double size of height: 463x626 or bigger

2, Create a page and insert "OT Portfolio Masonry" element: 

Thank you for reading!