Hi,
3D(modelling,animation,rendering,Interior& Exterior) EXPERT!.
I checked your attachments ad create rendering of three white shoe boxes on top will provide you high-res and on a transparent background as per your mentioned description .
Give me one chance to work for you, will sure give you 101% high quality and exact that you want.
Looking forward for long term business relationship.
Thanks and Regards,
Parkash j.