Raphael wasn't the leader. The leadership role usually belonged to Leonardo. The comics focused more on Leonardo's strategic and guiding abilities for the team.
Rafael Lacrosse was an Italian whose main works included "La Traviata","Madame Bovary","Anna Karenina" and so on. These works were regarded as classics in the history of world literature, which had a profound impact on the fields of literature, art, and psychology.
Some other platforms that might have such fanfiction are FanFiction.net. However, the content there can be a bit more hit - or - miss. You might have to dig through a lot of different stories to find the good Raphael x Leonardo yaoi ones. Another option could be Tumblr. There are a lot of fan communities on Tumblr that share and discuss fanfiction, and you might be able to find some links or even full stories there.
One common theme is the idea of protection. Raphael is often portrayed as being very protective of April. Another theme is the discovery of new feelings. Since they are from different 'worlds' in a sense, their relationship development can be an interesting exploration of new emotions.
Sure. However, the quality can vary a great deal. Some fanfictions might be more action - packed, with Raphael and April fighting side by side against their enemies. Others may be more about their relationship in a more peaceful setting, like how they interact in their daily lives. It really depends on what you're looking for in a raphael x april fanfiction.
I'm not aware of any 'abused' fanfictions in a positive or promoting way as abuse is a serious and negative topic. Fanfictions should generally focus on positive, creative and healthy storylines rather than such disturbing themes. However, if there are some that deal with this in a way to show how to overcome abuse or something similar, they would be hard to single out without extensive searching through the TMNT fanfiction community.
Well, a common theme is the exploration of a forbidden love. Since it's a gay relationship in a context where it might not be fully accepted, there's that sense of secrecy and the thrill of breaking the norms. Also, there's the theme of loyalty. Raphael is usually depicted as extremely loyal to the reader, and vice versa. Their bond is unbreakable in the face of difficulties. And of course, the theme of personal growth. Both Raphael and the reader grow as individuals because of their relationship.
St Raphael is an archangel in religious traditions. He is often associated with healing. In the Book of Tobit, he played a significant role in guiding Tobit's son on a journey and helping him in various ways, including getting married and obtaining a cure for his father's blindness.