With a colourful cityscape, scale decides whether the living room wakes up or stays polite. Pick a generous size and the whole wall lifts: deep red, mustard and bright blue do the heavy lifting, while the pink townhouse and green shopfront keep it feeling friendly rather than loud. It sits well on a chalky off-white wall above a low sofa, sideboard or kids' playroom shelf. Pair it with rattan, painted timber, striped cushions and a few terracotta pots to echo the planters. Avoid hanging it next to other busy patterned art or heavy traditional florals — this one wants room to breathe and a calm wall around it.