I'll second Denny's recommendation to move the 15 minute addition to FWH. If it were me I'd also drop the 30-minute addition altogether and do a hot whirlpool/hop stand. I find that I get the most hop presence from extended contact with hot/sub-boiling wort (FWH and whirlpool, basically), so as time goes on I keep moving more additions to before and after the boil. It may just be in my head, but I also find that hop character fades more slowly in beers with FWH and hop stand additions.