Rowdy - I love your work on the Halifax. I always hesitate to offer corrections but I am a pedantic bastard and like to see things correct.
You have drawn a 466 Squadron RAAF Halifax MZ287 Coded HD-Q. I would offer the following:
1. HD are the squadron code letters and Q is the aircraft. On the starboard side of the aircraft (as you have drawn) I would argue the squadron codes would be forward of the fuselage roundel and the aircraft code aft of the roundel. This would result in the code letters reading Q-HD on the view you have drawn and HD-Q on the port side. This would appear to be a marking standard.
2. I cannot find any pictures of MZ287 but the artwork on the www for that aircraft that show a yellow surround to the aircraft's code letters. Looking at the few pictures available on the Australian War Memorial website no 466 Squadron aircraft appear to have yellow surrounds to their codes.
3. The mascot you have placed on your aircraft belonged to another aircraft ("HD-T" according to what I have seen). You seem to have mixed your references. HD-Q didn't appear to have a mascot. In addition I believe mascots were painted on the port side of the aircraft as standard. Why? Maybe because that's the side the pilot sat on. (That's only my theory). Yes, I know FD Scale drawings demand the starboard side view but to be correct you wouldn't see a mascot in that view.
A couple of reference artworks:
http://img.wp.scn.ru/camms/ar/560/pics/81_3.jpg HD-T "Trixie"
http://img.wp.scn.ru/camms/ar/560/pics/81_1_b1.jpg HD-Q
Once again I love your work.