Sure thing! I found a promotional photo for the ZMF Ori that places purpleheart (far left) and padauk (middle) side-by-side, so this should help.
They do look quite a bit different under different lighting conditions, so that's why I made sure to include a variety of photos. The first three are indoors under regular lighting, followed by one you can tell was taken outdoors, and the last five against the orange wall were taken indoors lit by my extremely bright full-spectrum 10,000 lux Carex Daylight.
This promotional photo seems to have been taken outdoors, and you can most clearly see the similarity with the photograph taken outdoors in the middle of the collection above.
Note that the photos taken under the 10,000 lux lamp seems to make them seem the most red and therefore similar to the padauk, but this is lighting most people probably won't ever even see them under (unless you own a huge seasonal affective disorder treatment lamp). Regular indoor, followed by outdoor, lighting accentuates the differences between them the most.