When I think of M. Night Shyamalan, I think of movies with a twist at the end.
When I think of Quentin Tarantino, I think of smart movies that are just a bit too violent and/or twisted for my own personal taste.
But you know what you're getting when you go to their movies. Because it's their brand, their style of film-making. You wouldn't go to a Quentin Tarantino movie if you wanted a heart-warming love flick.
What does that have to do with me?
Are you a romance writer? Are you a young adult writer? Are you a horror writer?
If you've written six horror novels, you may not have a great reception in the children's picture book community. Why? Because they will get used to viewing your material as horror, and not suitable for children.
If you've written young adult romance novels, you may have some resistance when writing an adult thriller.
That is one reason why many well-known authors have used pen names (think Nora Roberts vs J.D. Robb) They don't want to offend their existing fans by branching into other genres. Even if *wink wink* we all know who's really writing the novel, we know what to expect when we pick up the book using the pen name.
My point in this post (If I have one) is to think about your long-term writing career. Don't just write whatever is coming to you right now, write the kind of books you want to be writing five, ten, even fifteen years from now. If you want to write both YA and Adult novels, don't write five novels that are solely young adult. Mix it up so your audience won't pigeon-hole you into one genre.
What genres do you like to write?