Keep in mind that MELODY IS EVERYTHING? Without it you have nothing! Try to use the natural rhythm of the words to paint your melody and keep the pattern as true to speech as you can. There should be a melody in all instruments or groups of instruments to create a melody is also ok. For example, if you were to listen to an orchestra it is always the sum of the parts that make up the melody so always keep that in mind. Walk away, and come back, and give it another listen.
Good luck!
Good luck!