Can you flip the key over and make Colleen stand out more? oops that won't work or the house is upside down. Maybe less frill at the circle part of the key and simpler C's. I don't know just thinking out loud. Really like the concept.
I simplified the "monogram" end of the key, including changing the 'C's to a san serif. I emphasized COLLEEN by making it all caps and pumping up its color and weight. I provided 3 different color options of the logo, but feel free to ask for other variations. I'd be happy to make more changes. Thanks!