There’s a creative tension that animates the work of Anna Jewsbury, founder and artistic director of Completedworks in London. It centers on the push and pull between “ornament and practicality,” as she puts it, exploring a balance of function and frivolity. What often results are pieces, loaded with character, that make you look twice — if not again and again — trying to figure them out. Completedworks began in 2013, with jewelry, before delving into ceramics and homewares. But mos...