#12 - I like this concept. It's clean cut. I would like to see if the "R" within the circle could be changed a bit. Also, if the Font for my name could be changed as well, I think that would be great to something with more emphasis.
#68 - I really like this concept with my initials and the roof. I would like to bring out the icon a little bit more with emphasis and bring more of a quality look to it. Possibly with a border all the way around such as a circle, a shield, or a diamond shape of some sort. Maybe adding silver or grey outlining somehow. I like this green, but am also leaning toward the lime green as well.