I had a great time putting together this collection of art for a client last week. This is a great example of the whole being greater than the sum of the parts. Previously, these pieces were isolated and hung separately around the house. They represent his travel to Ecuador, Brazil, Argentina, Japan, the Wisconsin Dells(!), memories and mementos. Hanging art in this way can greatly increase the impact for your space.
Give it a try and let me know how it goes!