When you think of a chain hotel bar you’d be forgiven for imagining something bland. A space that manages to be polished in a way that’s devoid of all character. You might expect to find a businessman propping up the bar or families lazily sprawled in armchairs, waiting to head out for the day. What you don’t expect to find is a big sofa made out of grass. Or brightly striped deckchairs next to huge floral displays. TwoRuba, located in the Tower Bridge Hilton, differentiates itself from the norm with its bold seasonal installations and matching cocktails. As the seasons change, so does TwoRuba’s decor and so does its cocktail menu. TwoRuba’s everyday…