1. Flow has vastly improved but the orange and brown is a bit monotonous, try using a mixture of organic photographs and c4ds for your background to created an unwhored look.
2.Again seems like you got a new c4d packthe bubbles are way too prominent, but the overall asthetic and focal is there. Missing a light source and some levelling. Try using some text and experiment with that and add some borders, they can make a huge difference.