variety of makers out on the battlefied..I know the Gunner is a Grenadier from 1998, and I suspect the cannon is Grenadier as well..

AirFix 1/72 prone Afrika Korps light machine gunner…displays the excellent sculpting, pose and detail, said to be done by Ron Cameron. Available from many sources, but I hang out a lot at https://www.michtoy.com/vendors-Airfix.html

From A Call To Arms

Set 51

French Cuirassiers 1815 1/76