Hi I followed your grain Bill but changed the hops

there is a bitterness to it when we bottled it ?
8 lbs 4.0 oz Brewers Malt 2-Row (Briess) (1.8 SRM) Grain 1 81.7 %
8.0 oz Caramel Malt - 40L (Briess) (40.0 SRM) Grain 2 5.0 %
8.0 oz Caramel Malt - 80L 6-Row (Briess) (80.0 SRM) Grain 3 5.0 %
8.0 oz Caramel/Crystal Malt - 60L (60.0 SRM) Grain 4 5.0 %
3.0 oz Melanoidin (Weyermann) (30.0 SRM) Grain 5 1.9 %
2.1 oz Carafa II (412.0 SRM) Grain 6 1.3 %
0.5 oz Roasted Barley (300.0 SRM) Grain 7 0.3 %
0.50 oz Saaz [4.00 %] - First Wort 60.0 min Hop 8 7.7 IBUs
0.50 oz Saaz [4.00 %] - Boil 60.0 min Hop 9 6.4 IBUs
0.50 oz Amarillo [8.50 %] - Boil 30.0 min Hop 10 10.4 IBUs
0.50 oz Amarillo [8.50 %] - Boil 15.0 min Hop 11 6.7 IBUs
0.50 oz Amarillo [8.50 %] - Boil 0.0 min Hop 12 0.0 IBUs
1.0 pkg California Ale (White Labs #WLP001) [35.49 ml]