It's great when people gang up to tell you everything that is wrong.

Yes, the big ring teeth are hammered. The middle ring teeth are hammered pretty badly too. And the chain is badly stretched. That's the reason the chain isn't engaging the teeth fully, or the teeth not engaging the chain if you prefer to put it that way.

The bar tape is, um, experienced. You really think it should be replaced? Okay, if you say so...