Its quite a simple process the image is printed onto clear s/a vinyl
and applied to the acrylic it can either be applied to the face or printed
in mirror and applied to the back of the perspex.
pop into your local signmakers if they have a digital printer the cost
should'nt be more than £30 for 1mtr square of print either onto clear
or white, it can be a mix of prints in different sizes, they usually have
offcuts of clear Perspex/acrylic that they will happily sell at a resonable price.
we are fortunate in having a laser machine so we can cut the pespex to size
and it polishes the edges, also cuts the fixing holes.