Thanks for the input on the color! I chose sepia just because it looks more mechanical that way..kind of steampunk, if you will. I will definitely consider black/gray though.

That heart would go on the left side of my chest, like when saying the pledge of allegiance. Right there.

The color would be that kind of sepia tone, as seen in the picture. It would be the size of a fist, basically the size of an actual heart.