Trying to get more of a modern look.

What's a "modern look"?

You will get more and better responses if you ask in Building a Home.

I'd start by rethinking the roof. Image below is only to give you an idea of a different roof.

You are not asking a simple question. The best way to answer your question is to start over with the look you want in mind.

How did you get this far?

Who designed this?

What do the floor plans look like?

Way too much going on.

A more modern rear elevation. No false facades. Removing all from the front is a starting point.