maple, vanilla, molasses (from the brown sugar), apple, oak, AND citrusy hops? That doesn't seem like the best-tasting combo to me - an especially difficult to balance for a beginner.
Something to remember when starting out is that ingredients used in fermenting do NOT behave the same as when cooking. Keep it much simpler and start with just one or two new ingredients until you get used to what they do. With this recipe, if you don't like it, you won't be able to determine which ingredient is the problem, whether it's an interaction issue, an amount added issue, etc.
I'd agree in dropping the apple juice. (If you REALLY want some apple flavor, you can "dry hop" with some apple slices in brandy/rum, but as mentioned above, apple flavors are often percieved as a flaw.
If you want "clean and crisp" then you definitely need some bittering hops (10-15 minutes of boil isn't going to cut it - you need AT LEAST 45min, preferably at least an hour. Many people recommend going to a 70-75min boil when using extracts). As far as hop selection, if you want a fall-style taste, I agree with @hercher above, look towards European hops. The various hops of the American northwest are wonderfully flavorful, but are best suited to springtime and summery beers - the earthy and woodsy flavors of the European hops are more reminiscent of the smells of autumn (and the hardy root vegetables of winter). I'd recommend Fuggle for a deep earthiness, East Kent Goldings for an all-around mellow earthy/woodsiness, Saaz for a stronger spiciness. Hallertau and Tettnang would both make great bittering hops. If you really want a fruitiness that is more fall-oriented, Strisselspalt can give hints of blackberries or currants (but that might not play well with a strong maple flavor).
Is the Coopers LME that you plan to use pre-hopped?
Be sure to check what your brown sugar really is. Some are true brown sugars (but more expensive and usually labelled "turbinado"), some are white cane sugars with some low-grade molasses added back in (better off using corn sugar/dextrose and a couple Tbsp of good molasses), and some are just white can sugar with artificial coloring and flavoring added (avoid!).
Of course, you could just swap out the apple juice with some pumpkin or butternut squash - most of your ingredients would play pretty well with that, would just need to adjust quantities....