Activity for Melissa

So this is the church that I'm getting married in, its unique and I love the windows but I feel as though it's kinda cold and bleak inside. Any suggestions to warm it up and make it feel cozy and intimate?

I'm getting married in an old church that has been converted into a community center. While the building has a lot of charm and I love the stain glass windows I feel like the interior needs some color and...romance? I plan on adding a floral garland...