Golden brick #1

Walk to the place shown on the picture and shoot at the shield - Brachiosaurus Plains | Jurassic Park - secrets in free roam - Jurassic Park - secrets in free roam - LEGO Jurassic World Game Guide & Walkthrough
Walk to the place shown on the picture and shoot at the shield. Once the flower blooms, switch to dilophosaurus and destroy the black container on the left side. Create a trampoline from the scattered bricks and collect the golden brick hanging on the tree.

Golden brick #2

As pachycephalosaurus, destroy the blockade, then switch your character to Timmy and enter the darkened cave - Brachiosaurus Plains | Jurassic Park - secrets in free roam - Jurassic Park - secrets in free roam - LEGO Jurassic World Game Guide & Walkthrough
As pachycephalosaurus, destroy the blockade, then switch your character to Timmy and enter the darkened cave. At its end you will find the golden brick.

Photo #1

As Grant, walk to the pile of ground and dig up a blue brick from it - Brachiosaurus Plains | Jurassic Park - secrets in free roam - Jurassic Park - secrets in free roam - LEGO Jurassic World Game Guide & Walkthrough
As Grant, walk to the pile of ground and dig up a blue brick from it. Switch your character to Udesky, take the brick and follow its trail. Once you reach the destination, dig up another bricks from the ground and create a tripod from them. Switch your character to Billy and make another photo to your collection.