The shaping of Nathaniel Hawthornes paradoxical mentality".
"Analysis of Three Major Characters in The Scarlet Letter".
They are different. You don't need the article with words like Introduction; Background; Results; Analysis; Discussion, etc. They are descriptions of what follows.
However in the "shaping" example, the shaping... doesn't follow. Your opinions of the shaping... follows.
So you call it "Opinions of the Shaping ...." or "The Shaping ...."