i figured that tfa had chins and prime had eyebrows, so originally i was going to make his nose his feature of awesome. but in the end that didn't quite work out. also now i have an urge to babble about aspects of the design that i was trying to include but aren't probably obvious ... anyway! so i turned his geewun crest bits into pseudo eyebrows. his little gill things? ears? are meant to give him a cobra sort of silhouette because, you know, sexy sexy snakes and all ... ALSO! he has a wiiiiiiiiiide mouth because in the dim closet that is my head starscream functions as propaganda minister for megatron. so now you know!