I have that same dress from last year huge in a different print (so same cut, with a vibrant print). I wear it with these brown strappy wedges from M&S, but I would recommend an espadrille - could be cream or one of the other colours in the dress. I think the dress lends it self quite nicely to a wedge, but you could go for something more trendy like a pink braided mule or a flatter woven looking sandal