I'm not a fan of wheat beers (only have made two!) so I don't know about the hefeweizen.
As far as the amber, the basics look good. My only concern is with that much crystal malt and amber extract. Amber extract has crystal malt in it as well (but I don't think anybody knows how much!) so you may have a bit too much crystal malt in there as a result.
My preference is to use only light or pale extract, and use the grains to provide color and flavor, so that you have control over the amount of sweetness.
I'm sure you'e aware, but with the British hops in there, the British yeast, and the British crystal, that beer may taste great but it isn't an American amber. But......call it a British pale ale like an ESB and you've got it!
Broken Leg Brewery
Giving beer a leg to stand on since 2006