Posted: 17/01/2015 at 09:42
I'd definitely start with a few pots on the hard surfaces to make it feel a bit more inviting. As Lizzie says, a climber growing along the fence would also be good - you could try nasturtiums this year (but they will only last for this summer), and if you like the effect you could go for something more permanent. How about growing sweetpeas up wigwams of canes too, to give some height (and a wonderful scent !).
why have you removed the bark chippings, and what have you uncovered underneath? Could you grow grass there? If not, then woodchips are not a bad covering - better than bare earth anyway.