Beautiful three-view, No.1!
I can't decide if the small red panel just behind the cowling is truly red or fresh olive-drab to match the rest of the anti-glare panel in the photo. I'm thinking it was a replacement part in green, but I may use the red as you've done it.
These training airplanes were flown very hard and the maintenance crews were faced with shortages of spare parts. The Base Historical Records tell of not being able to get parts and tires because priority went to the combat zones first, then CONUS training stations. Bruning nearly had to cease flying for a short time because no tailwheel tire inner tubes could be gotten.