Toshi- very well done, and very smooth both with the build and the paint! The SR-71 is my favorite aircraft of all time, and you've captured the look very well. The cockpit in particular is very well done, and I'm glad you left the canopies open to show off your work. Those red 'no step' decal stripes are also difficult to lay down correctly because of their length, and it looks like you got them to behave properly! I built the old Minicraft/Hasegawa Blackbird years ago and I had trouble with those red stripes.
Very nice of you to build this for your daughter's boyfriend.
Dave