It's hard to get the Blues into the right place. But you'll need a lot of retries to get high scores because it needs lucky, again.
Toss one Blue bird over the first tower, splitting to break the vertical ice supports of the right tower. Better destruction will received when you aim it at a bit upward angle and splitting him immediately. After splitted, try to destroy all of the three "legs" made by ice blocks in the right structure with the top Blue Bird. Sometimes, after this shot, the whole level will be destroyed, but it'll better if the TNT is not exploded yet. Fire another Blue bird straight ahead through the smaller vertical ice blocks on the left side. Try to get as much destruction as you can in this shot, especially with the TNT. If you have detonated the TNT, you don't have to do the next shot. Even though all pigs should be popped, quickly fire a Red bird to detonate the TNT in the middle of the level to earn some extra points.