Most times you get what you pay for, but not always.
The work posted appears to be an advertisement for this taxidermist. If this is his best work, I would go elsewhere. Although his technique appears sound as far as can be seen in these images, his artistic technique leaves a lot to be desired. All of the animals pictured appear to be half-asleep, wandering aimlessly down the trail. A good taxidermist can make your animal come alive and give it some individual personality. Note the ear position on most of the animals, the droopy eyelids, and the non-chalant forms he has chosen for these mounts.
Certain types of antlers look better on certain forms. Low-profile forms are best on deer with wide spreading anlters without tall tines, for instance. Upright, erect forms in general help accentuate long tines and rearward form, such as G1s and G2s.
Ear position can be changed to make the buck look more alive and about to move, rather than poised in the "caught in the headlights" position all the time. In general a slight difference in ear position is better than a mirror image position.
I would look for someone else if it were me.