Can someone take a gander at this recipe and give me some feedback?

This is my first stab at my own recipe. Are there any potential problems? It's going to be a hoppy porter. Kind of like a black IPA I guess.

Steeping grains:
1.5lb Light Munich Malt
1.5lb Crystal (120L) Malt
1/2lb Carapils Malt
1/2lb Chocolate Malt
1/2lb Black Patent Malt
Steep at 152°F for 30 minutes

Boil:
6.6lbs of Briess Golden Light Liquid Extract
1lb Honey

Hops:
3/4oz Columbus 60 Minutes
1/4oz Columbus 30 Minutes
3/4oz Columbus last 0 minutes
1 1/2oz Centennial last 0 minutes
1oz Centennial dry hop

Wyeast London Ale 1028

Predicted OG: 1.06
Final Gravity: 1.015
IBUs: 52
ABV:6.5

Thanks in advance.

A little heavy on the black patent for my taste. Cut it in half?

Nice looking recipe -- I'd dial back the specialty grains to 15-20% if it were my recipe I'd knock down the black patent to .25 lbs, knock down the carapils to .25 lbs and take the C120 down to 1.25 lbs. To each their own however. It's your recipe, brew what ya want!

Thanks guys. I think I'll cut the black patent in half.