I need inspiration for what to do with my garden. It's currently very badly concreted and although safe looks awful!

We've been saving like mad and have £5000 put aside to do it up (want to spend less as after the garden were doing the kitchen and I have expensive plans for that!).

Do i block pave it, get artificial grass or a mix of both? My gut instinct is to do both of them. It's a good sized garden and with a bit of effort could look lovely but neither DH or I enjoy gardening so it needs to be as low effort as possible.

Any ideas? What looks good but isn't too expensive?