3. Tree with hidden treasure function and ladder to the top.
4. 2 Minifigures (Owen Grady and Sinjin Prescott)
5. A blue Velociraptor and baby Delta
The whole set is a quick build as it is a 4+ set, but it is pretty neat anyway.
Biplane is a neat build with chain hanging down for a minifigure to grab on to, which makes for great play. The ATV is very small and simple and not really neccasary to the set. If it was not included and the set cost about $30.35 it would probably be better.
The tree with secret treasure hidden is really neat, and the lookout on top is really good to.
The blue raptor is really neat, and the updated Technic attachments for the arms and legs are big improvments over the last ones, which after a few 'hybrid' swaps would become loose. Baby Delta is adorable and goes well with my other baby dinosaurs (Blue, triceratops and ankylosaurus).
Owen Grady is a minifigure anybody with a Jurassic World set has, but the new shirt design for the new wave of sets is a needed change. Sinjin Prescott is pretty neat with his Alan Grant/Indiana Jones/cowboy style hat.