Hi NCs, I'm not sure  whether you like it or not. But I have a small idea to make your main page group module stand out with the shadow and image hovering effects. 
Note: OK and Tested with 2 and 3 column layouts, New Design Studio. 
Live Preview :
here 

 
Preview: 
 Copy and paste the following code into Advanced CSS via my network> Settings>Appearance.
 This code is for those who are usi…