South west facing long garden SE23

Approx 80ft garden. Sunny. End of garden wild and overgrown. There’s a shed hidden in here. Towards the back is a 10ft trampoline that I need to dismantle: once gone, this area would be good for digging & planting, or raised beds. Or a pond? Sides of garden have been planted (incl. 4 dwarf fruit trees & some shrubs): got a bit overgrown this year. Needs weeding. Front & middle of garden is lawn.