Please list the top five.
Obvious use of photo projection, probably indicates poor draftsmanship.
Incompetent composition, none whatsoever, really.
Discordant, busy field which distracts from main subject.
Crass use of colors with zero sense of subtlety.
Flat, two dimensional field which conflicts with the attempted realism of objects.
Good propaganda art is competently executed. A comparison with Soviet Realism for instance shows this tat to be the primitive - and ironically appropriate - exercise that it is.