I ended up doing a private tour with Shivam (no other people showed up) and I loved every moment of it! The tour took a bit less than the scheduled 3 hours. During this time I managed to eat a ton of local dishes (my recommendation: when doing the tour, have a light breakfast and skip lunch entirely), I learned a lot about the history and culture of Mumbai and India from the local's perspective and I experienced the local life, taking a city train and a minibus, dining on the floor at the popular beach and crossing busy market streets. Moreover, Shivam answered all my questions and gave a ton of recommendations for the rest of my stay. Couldn't imagine a better evening!
Kweku took a good care of us at the Makola Market and surroundings. Arriving to Accra from far away and seeing a totally different culture might be a bit overwhelming at first, so I recommend to take a walking tour with Kweku as one of the first activities during your visit. After a few hours spent at the busiest spots of Accra under his wings, we were more confident at interacting with the locals. Meda ase Kweku :)