Just a thought:
Of all the queries I've read in the past week or so, the vast majority of them were for young adult fantasy. I love young adult, but it's certainly not the only thing I want to represent nor is the marketplace big enough for me to only do YA.
Send me some book ideas for grown-ups, please! Genre, non-genre, thriller, literary fiction, women's fiction, dragon steampunk: it doesn't matter. Just make sure that both your query and your writing are polished and that your storytelling is flat out amazing.