Google Page Speed still showing images as not smushed

Images still shown as it needs optimization, and resizing. Have provided the following code, but still the images are listed as it needs compressing, and resizing.

You can find the code inside functions.php file

`add_action( 'init', 'av_add_thumnail_size' );
function av_add_thumnail_size() {
add_image_size( 'aboutvalley-thumbnail-custom-one', 255, 141, false );
add_image_size( 'aboutvalley-thumbnail-custom-one', 255, 169, false );
}`

Also, there are two images being listed in the Google Page Speed from another server, however it isn't being called in the homepage too.