That is very similar to what I did (I had light DME, Munich, Chrystal, chocolate). When I racked mine to the secondary, Mine was very spicy tasting, the cinimon was very pronouched. I had less IBU's that you do, and a lower OG, I really didn't notice very much pumpkin flavor. (I used 7lbs of pumpkin, baked at 350* for 1hour).
Mine should be quite good, if the spices mellow out a bit as it ages a bit. The real test will in a couple of months, after it gets some age in it.