Tech Orb Tips:
In the first area a lot of orbs are hard to see because either they are against a bright background or because of the orb draw distance. It's really unfortunate that orbs don't have a great draw distance in Enslaved. The other thing in the first area to look out for is the boat. Shoot it's exposed fuel tank. You'll be glad you did.
Another dog, this time you have to kill it! Use your stun shot to stun it, then either melee for a little damage or use the plasma shot for a lot (upgrading it helps a lot!). When it runs, chase it on your cloud and use B for a finisher. Repeat until dead (it, not you).