The entrance should be pleasant and welcoming. From the outside the store needs to look natural and exciting. As an example use bollards for walkways and recessed or integrated light to shape the structure of the building.
As you enter the showroom try to avoid glare as much as you can. If needed use accessories that help to cut of the direct sight of the light source. Honeycomb louver or cap cones are two great accessories to achieve a pleasant non-glaring light, consider also using barn doors for this effect.
To get a good understanding of the set up, use different light in the different areas of the shop.
The height of the installation in these shops can be a challenge. Use luminaires between 1100 and 3000 lumen up to 3500 mm. Above this height use luminaire with a higher light output.