Though this is open top, there was very little interior detail. What was provided doesn't appear to be accurate. Since this wasn't intended as a long term scratch building project, I added a little detail and personal stowage items.
Though the kit provides two generic stowage boxes inside, these were really open shell racks. There were also 2 folding wooden platforms to stand on for the gunners and loader.
I did a base coat of steel and then covered it with a white wash. Using the dabbing sponge, I chipped with Gunmetal before gloss coating several times. Then several washes and wipes. Added dabs of rust over the chipping and washed again to blend.
Vince B 9-21-19