Pickup 5: Level 2.4
As the water level raises you will see 4 blocks and off to the left you will find the trophy. You need to jump off Claire and grab it then jump back on or just die.Pickup 6: Level 2.9
As you come up the elevator on the right, just before you make the last jump you will see the trophy all the way up top right under the spikes. It's possible to grab it and jump off but really isn't hard to get back if you die.