Back garden, before and after. What do you think and any other ideas?

The garden is still a little work in progress but so far it changed already quite some bit. (Not yet cleaned up 🙂 )

The gras slope is just missing topsoil and grad and the left side is a foundation for a greenhouse and stairs to the side garden which is still currently walled in.

Garden is south facing. The back wall part has quite some shadow hours during the day.

Just want to know what people think and am open for ideas or feedback of flowers or plants/projects at the shadow corner 🙂