/diy/ - Do It Yourself

I have a southwest-facing concrete garden which has no soil apart from some rose beds along the boundary with the neighbour. there's a lot of cracks where weeds are growing through but it's otherwise flat. it is completely soulless and I'd like to turn it into a nice garden that's both nice to look at and relax in, but also beneficial to wildlife. my current thoughts are to make different areas of the garden such as a small wildflower meadow, a secluded bamboo/japanese garden behind the shed and a normal pretty arrangement in the middle. in the plan I've uploaded
>the wildflower meadow would go in the 2m x 7m section
>the bamboo/japanese garden would go in the 2m x 2m section behind the shed OR it could be made bigger with the whole 3m x 5.6m section on the left of the shed
>the big 2.4m x 12.6m middle area (between the beds and deck I am not sure what to turn into but I want it to have nice flowers and a path to the back
my ideas are quite rough but do you guys have any opinions of what I could do with my barren garden?