Delightful. There's some harmonic variety not present in a lot of your stuff, and the vocal writing is adequate. I'd watch for some of the syllable placements, such as the long held out "I've", which I'm not sure should be written that way. The modulation in the middle worked, but I was expecting more of a traditional aria structure.
Also, some note spellings are wrong (using F when it should be E#, etc,) but those are superfluous details. Good job.