I'm sorry, the whole tone of this shot comes off to me a little oddly. Perhaps some different adjustments could have given it a bit more visual impact. What are the two things that look like whiskers at the bottom right?
I liked the photo but didn't understand the light streaks particularly if they were intentional.. I thought that they detract from an otherwise really nice shot.
I think you need a little work on setting the exposure for flash and ambient light. I have found the easiest way is to first set the exposure so the sky either with exposure lock or manual mode. Then set the flash level via manual settings. Hope this helps.