Constant panty shots, bouncing breasts and dubious camera angles are hallmarks of an Ecchi title. These titles are usually sexualized and designed to titillate, depicting perverted themes and focusing heavily on the female body. Nosebleeds, suspicious hand positions, faceplanting into bosoms, expressive and exaggerated body parts and other tropes characterize this genre.
Fantasy anime take place in a broad range of settings influenced by mythologies, legends, or popular and defining works of the genre such as The Lord of the Rings. They are generally characterized by a low level of technological development, though fantasy stories can just as easily take place in our modern world, or in a Post-apocalyptic society where technology was buried alongside the old world. These anime also tend to feature magic or other extraordinary abilities, strange or mysterious creatures, or humanoid races which coexist with humanity or inhabit their own lands removed from ours.
Sci-fi, or science fiction, is a speculative genre which builds on imagination. Sci-fi anime ask, "what if things were different?" They explore a new world, whether it's the world of the future or past, a present Earth with a changed history, a land that was previously unknown, or another planet entirely. The genre commonly features humanity's inquisitiveness and innovation, as they grapple with new technologies, new societies, or new frontiers in Outer Space.