The stowage on the back deck is now painted:
The photo isn't particularly good, the contrast between the colours is much too great but I couldn't get it more accurate without making the photo look even worse

I'm still painting the stowage for the hull front.
When the rear deck was done, I applied the decals:
Before doing that, I first repainted the circles of the squadron markings (on the turret) dark green with a fine brush, because the pictures of the real tank show that it was lighter in tone than the letters "HQ" inside, and Mike Starmer said the circles were probably green.
Some of the kit's decals aren't historically correct. In the yellow text on the right front sand shield, the H is too large (it should only be in front of the first line), the name
Churchill is in a wrong typeface (MS Comic Sans, if I'm not mistaken …) and the same goes for the War Department census number (that's in Helvetica, which didn't exist yet in 1943) so I cut the hook off the 1 to make it resemble what was on the real tank a little better.
On the lower hull, I painted matt black over the bolts for the bogies, idler wheel, etc. because the photos of the real tank show it had black stuff there to waterproof the seams. Once dry, I drybrushed it with Light Mud to make it look like it's beginning to wear off.