To look like Caroline Issa, you could shop on Net-a-porter :
the bright orange Renada double-breasted silk blazer by Steven Alan :
with the white Marsha burnout linen T-shirt by Elizabeth and James :
these dark-blue Miu Miu Stretch wool-gabardine pants :
and Alaïa Cutout suede lace-up sandals :
All these items are available on Net-a-porter.