Um. Eragon much? It's almost identical...u just changed names. You need to have a solid stream of separate ideas and twists that are unlike Eragon. You need an evil character....someone to change the odds. An "unknown and unseen" foe.
Was it supposed to have the same feel? It was good either way. But don't ask me about writing stuff right now. I'm going to fall over any second now.
Depends. They both have the same purpose: comparing things. Similes use like or as, so I guess it depends on the writer. metaphors tend to be more thought out while similes can be brilliant when used with tact. Now what about me falling over?