>>4263334That camera you've been gifted costs around 1000€ retail where I live. Thank your friend for it. That said, GH5 is a very capable camera in terms of photography too. I had the previous model, the GH4, and the colors I got with it (back then, I shot only jpeg because I didn't know about raw editing) were fantastic.
GH5 is weather-sealed, so I would go for lenses with similar features: the Panaleica 25mm 1.4 II is easily obtainable at a good price in the second-hand market. Another option is the OM-System 20mm 1.4. Both are great lenses that work well in low light. They are equivalent to 50mm and 40mm respectively, onions they would allow you to do both urban photography and portraiture. If you enjoy the hobby, you can start building your lens colllection from there
Learn how to use the camera. With a bit of skill and a good eye, you'll get excellent photos.
>picrel is a 25mm 1.4 cityscape 