You look fine for ICC-10. In ICC-25, you'll be fine in the lower spire. Your raid might notice your lower DPS on the gear checks.
Your expertise is a little low for Blood. It's really important to hit 26 so your rotation doesn't fall apart. You can mitigate that lower expertise by swapping to Unholy for DPS.
Get rid of that hit rating gem in your helm. You don't need the hit. Blood DKs should not gem for crit strike rating. You should only gem for Str or expertise. If you swap to Unholy, Str is still the best gem. You should use orange gems to fill in other gaps or to get good socket bonuses.