The diorama depicts HM corvettes Bluebell (K80), Lotus (K180 - the mine sweeper)  and Honeysuckle (K27) of the close A.S. escort (attached to Capt J. Walker's Second Escort Group). The carrier is HMS Tracker, whose 846 squadron attacked and destroyed a number of FW condors and shared in the kills of at least three U-boats (U288 with her own aircraft alone). 

The merchantmen in the convoy are represented by the well laden Liberty
Ship.  The Flower class corvettes are White Ensign kits (two partly scratched built).  Note the higher, modified bridge on Honeysuckle. Tracker is the Skywave kit (partly sctratch built).  The Liberty is a Tom's  Modelworks kit.  All models are 1/700 scale.