OK so I've only been brewing for about a year and have only done extract but I have a few comments since no one more experienced is jumping in. For starters I think it sounds like a good beer with a flavor I'd like. You might have a bit too much hops for your sweetness and alcohol content, but that is always a matter of taste.
That said it is out of style for a Cream Ale. You have a lot of hops, a classic Cream Ale is usually pretty mild and does not have an overly hoppy flavor. If you want to stick to style I would drop the hops to 1oz maybe 1.5 at most and I would do most of it at the beginning, boil 60, rather than doing at the end. I like the Cascade but for style purpose I'd do like 1-1.5 oz of Saaz.
Also I don't think the corn is a good idea. I know it is pretty typical for a Cream ale to have some corn but (and here is where my extract only experience may be a problem) I thought that some adjuncts like corn do not do much/anything when steeped. To get them to add anything you need to use them in a real mash otherwise there is no enzyme present to modify the starch and make it fermentable. I'm willing to admit I may be wrong about that so if you've had some experience with this or if someone else has a correction then I'm fine with that but I would leave the corn out.
Finally, why a Belgian yeast? I'm no expert on yeast strains but Belgian yeast usually gives you an estery profile with a lot of fruity flavors, again this is out of style for a cream ale. I would stick with a more neutral ale yeast like Wyeast 1056 or something like that.
OK so here are my thoughts. I would drop the corn no matter what. Other than that if you brew your recipe I think you will have a really good beer but it will NOT be a cream ale. I think your recipe will be better classified as a pale ale and will be very hoppy, possibly too hoppy for the sweetness and malt. That said everyone has there preferences and limits so it might be good. If you drop the hops you will be in style and I think you will have a good beer as well. So you need to decide if you want a Cream Ale or if you want to make your recipe. I think both have potential. Actually I'd recommend dropping the corn and making this with the hop schedule you came up with and again with a reduced amount of hops and compare them.
