Tom, this is my attempt at your method.
a bit of vertical engraving which doesn't show well on this view, then cut into strips.

Then, the lashing point engraved, and shot light grey from a rattle can.

Fitted in the raw state around the bridge, not perfect but I am quite pleased with the effect.

The 2 pdr platform has also been padded, the bulwark moulded on the platform is a little low, so the padding really helps.

The bridge padding has also been painted and washed.
The vents added around the funnel and the funnel stay worked in around them. The 2 pdr platform padding has also had a darker wash, a bit "washed out" by the flash on the camera (If you'll pardon the pun).

I found some L'arsenal resin depth charges left over from another project to fill the depth charge racks, here they ae having a coat of Tamiya XF69 Nato Black.

The depth charges being fitted to the racks.

The racks under construction.

and in place.

Few touch ups with brush needed, both on the racks and the fittings on the deck.
ore soon.
Si.