Front yard landscaping

Thank you all for your feedback on my previous post. Thanks to you we've now decided to widen the walkway to match the front doors. Now, it's time for us to think about the landscaping :)

What we love is greenery!

I was thinking of boxed hedge or those ball type trees or shrubs. And lots of grass of course! I also wouldn't mind a ball type tree on either side of the portico :)

What would you recommend? Should we only do this on either side of the walkway, or between the driveway and the fence on the RHS as well? Would all this greenery look strange with our ALL brick facade (and one day a brick & steel fence)?