How is Leonardo's relationship with Splinter typically portrayed in the TMNT comic books?

In the comics, particularly the Mirage and IDW series, Leonardo's relationship with Splinter is often the most intense and complex among the brothers. Splinter sees great potential and responsibility in Leonardo, often pushing him the hardest in training and spiritual development. Leonardo, in turn, holds immense respect and loyalty for Splinter, often seeking his guidance and striving to live up to his sensei's expectations, sometimes to the point of putting immense pressure on himself. This dynamic is foundational to Leonardo's character development.