Hi I'm JM,
As I read and understand your project description is that you need your wordpress site featured images displayed at a certain height and width. I think CSS will do for that just simple styling.
I'm a WordPress/Magento Web Developer for almost 3 [login to view URL] have the full expertise in different area on Web Development industry. Have the strong expertise in PHP,CSS,HTML,MySql,jQuery, JavaScript and Bootstrap.
I'm best at Web Development, Graphics Design, Video Editing, and Web Designing, in short I love to build websites with 100% mobile responsiveness, and functionality as well.
Has strong expertise in Adobe Photoshop And Adobe Illustrator for a high end branding logo.
Looking forward with your favorable response.
Best Regards,
JM