Honestly Kishi didnt miss with how well Sharingan abilties tells us about the user's personality or how well it connects
Corresponding with a post i made the other day about abiltiies connecting with someone's personality
(read the thread) - Any Thoughts?

Kakashi
his side allows him to send ppl or objects to the kamui dimension effectively making them disappear. Kakashi was plagued with his close loved ones dying in front of him. He saw his dad dead on the floor, he saw obito get crushed and he killed rin awakening his mangekyo.

Madara Uchiha
Madara’s is less about abilities but more about progression each progression for his ocular prowess he achieved through some connection to another. It's said that he awakens his Sharingan cause friendship with Hashirama and its said he awakened Eternal Mangekyo..

with his brother and awakened the Rinnegan cause he combines senju and uchiha. Also just like Sasuke he awakens the rinnegan when he loses everyone and is alone. This shows Madara’s ongoing hypocrisy with conflict and peace. Madara advocated for peace but strived for conflict.

Sasuke Uchiha
As we know one eye is to produce Amaterasu and the other is to control it. Unlike Itachi this shows Sasuke has the ability to choose and walk his own path. We know he chooses to burn and eventually rebuild. Sasuke awakens this ability after defeating itachi and...

declaring war on the hidden leaf. This was his first step to accepting destruction but with Sasuke it was never just destroy, it was destroy and then rebuild. The Village that put his older brother and clan through so much and then wanted to rebuild his clan after all the hatred

Itachi Uchiha
Itachi unlike his brother has amaterasu in the right and Tsukuyomi in his left. Also unlike his brother Itachi cannot control his flames signifying he couldnt control his path instead he was forced with difficult decisions along the way. Sadly Itachi wanted..

to protect but could only destroy his friend Shisui died in front of him leaving him with the responsibility of killing his own clan but lying to Sasuke about it all. Tsukuyomi is an ability to put someone under genjutsu in Itachi’s own illusion. This is representing Itachi’s...

Shisui Uchiha
Shisui ability is Kotoamatsukami which allows him to completely render a person’s free will without them knowing. He awakened this after watching a dear friend and rival die after withholding from assisting because of a moment of envy and weakness. This ability...

is a constant reminder for Shisui, after completely neglecting to help a friend u are cursed with an ability tht controls another’s will this shows his internal weakness.But since the ability is in both eyes it has two meanings. One is a constant reminder and one shows Shisui..

love to advocate for peace and justice. Shisui showed itachi the way of protecting peace in the “shadows”. Shisui’s ability didnt require eye contact to take control of someone.