Gaetan, if you're not already a member of the P-51 Special Interest Group (P51SIG
), you should be.
Mr Neeley is a very active member on the discussion boards and there's lots of good talk about all sorts of Mustang things. There's even a recent thread about why the doors droop and drop in P-51Ds.
Some minor details:
The middle engine panel on the bottom (to the rear of the perforated air intakes) is a single piece on the B/C, so you can remove the panel line and Dzus fasteners that run near the bottom edge.
There should be some fasteners/fittings around the edge of the rear window.
Some early Bs had a small door right behind the exhaust stacks. (dashed line in the Neeley drawing; I have photos if you need them)
For all but the earliest B production blocks, there should be a fuselage fuel tank and filler cap. It looks like you have an outline for the cap, but it looks a little small.
Unless it's just too faint for me to pick out, you need to add a step just below the back edge of the rear canopy.
There is a small debate about the existence of a small hump on the top of the engine cowling on Bs. See the P51SIG for (a lot more) details. It's there in the drawing, just forward of the rearmost access door.
Lots of B/Cs had ring sights installed as a backup to the reflector sight. This shows up externally as a 'bead' post that was attached to the front of the firewall. (Apparently even early Ds had these, though they were often removed.) Ina the Macon Belle and Princess Elizabeth both sport the front 'bead' post.
The radio post doesn't look right to me. The angle on the rear edge should be lower? In any case, a lot of B/Cs sported a simple post as in the Neely Drawing. Ones with Malcom Hoods had a different whip antenna.
Props need a little clearance from the spinner. Also, the holes in the spinner should be more of an angled 'figure eight' (again, check the drawing).
I hope these suggestions help!