silhouettes for characters

im thinking of designing some fantastical sci-fi themed characters predominantly villains for the game level. i widening the scope on the initial thumbnails then going to focus my concepts as the ideas get more centralized.
thematically african culture has been connected to supernatural, which i find could be an interesting pairing with the sci-fi era i plan to design. I mixed predominantly sharp shapes and tried to focus on contrasting forms to make them more appealing. the imbalance of the shapes also shows the uneasy kind of connotations for most of these villain characters. i am also considering having them be animal themed as well in some sense to tie into the tribal and wild nature of the setting.
i plan to focus on weapons being melee based as to futuristic or projectile as it fits a lot better thematically and is unique for sci-fi settings which are predominantly based on lasers and missiles i find.