How to change the image size?

Add this CSS to the review template CSS depending on which template style you are using. Feel free to change the px values.

Style 1:

img.wprevpro_t1_IMG_4 {
height: 100px;
width: 100px;
}

Style 2:

img.wpproslider_t2_IMG_2 {
height: 100px !important;
width: 100px !important;
}

Style 3:

img.wpproslider_t3_avatar {
width: 150px;
height: 150px;
}

Style 4:

img.wpproslider_t4_IMG_2 {
width: 150px;
height: 150px;
}