Hi,
you can change image size with bootstrap gird.
There are 5 size you can set with Bootstrap Responsive Gird.
If you use “Display Hover item in 1 row – “5”
5 images will show in 1 column.
If you use “Display Hover item in 1 row – “4” https://wpexpert24.com/tutorials/images/item-4.jpg
Then your image size height and width is going Bootstrap col-md-3 gird size.
If you use “Display Hover item in 1 row -“3” then your item size increase little https://wpexpert24.com/tutorials/images/item-3.jpg
If you use “Display Hover item in 1 row – “2” then your item size increase https://wpexpert24.com/tutorials/images/item-2.jpg
same if you use display hover item in 1 row – “1” then your image size going big.
if you need any assistant please contact us anytime. we will be happy to assist you.
Regard
mr_sagar