Do not know the designer of this but it does look like a mix of the other designers on this site.
If you have these piece, do get in touch as you may have knowledge of markings on the piece?
Wall plaque by Unknown
The site for everything to know about DURON, Paoli, Nieri and Bacci vintage african black chalkware / gypsum sculptures and figurines made in the 1950s and 1960s
1950s vintage chalkware statues 