"Holy Guacamole, Batman! Tom never looked so good!"
All I can say is WOW! Your first quilt? Nah...can't be! Awesome!!!
I'll let some of the other more experienced quilters address your stabilization/quilting questions. Just had to tell you how much I adore your quilt. (Sorry, I really don't know who Tom is, but OMG, what a quilt!)
Can't wait to see what quilt #2 brings.