During Sasuke's "evil phase", the anime shows us his advancement along the different stages of the Susano'o. The most noticable thing is that Sasuke's Susano'o responds with his feelings, more like it feeds of his anger. During his fight with Danzo, Sasuke becomes really enraged at how Danzo talks about Itachi and his Susano'o starts developing flesh and its eyes light up. Later on in the fight, Sasuke screams and his Susano'o further develops an offensive weapon and even starts using arrows. (His Susano'o had 2 major powerups while he was against Danzo) [flesh and an offensive weapon]
During that moment, Obito even mentioned that "His hatred has matured and gained in power" (he says it a bit differently from how the manga does. Shippuden Episode 210).
So does this mean that the only way to advance the Susano'o is through negative emotions? I want to clarify this cause the Wiki doesn't explicitly state how the Susano'o morphs from bones to full clothed armor. The only Sharingan user that the anime really focuses on in terms of Susano'o development is Sasuke. So, its hard to actually generalize this concept of hatred feeding Susano'o for all Sharingan users. (I'm not sure if i missed something)