Obito's actions and choices are understandable. Even though they were wrong you can't completely blame him. Obito is Naruto, except Naruto had the will to never give in. Plus, Uchiha have the Curse of Hatred
'Modern Koi', Inspired by "Koi Traditional Japanese Painting", Watercolor Illustration by Jennifer Kraska [b., American], ~ [Isn't a tattoo but it has a similar theme to my idea. A beautiful sketch like this would be stunning].