A very important consideration is studio lighting. There needs to be enough of it to see your subject, painting and palette without eye strain.
Light temperature is something to think about. The coolness or warmth can be plotted on a Kelvin scale:
An incandescent bulb is 2600K on the scale, with almost an amber tone, while a daylight bulb is 5250K, much cooler. I like to keep my lighting at the daylight level, with a little bit of warmth mixed in. A good way to do this is with LED bulbs.
They come in a wide range of temperatures, they don’t get hot like incandescent and they last a lot longer. Some light fixtures like the four flush mounted ceiling lights in the illustration below come with a built in LED unit. They give off a nice full light but when the LED unit burns out they can’t be replaced, the whole fixture will need replacing. On the other hand the larger 180 watt equivalent light fixtures in the center of the ceiling hangs down from the ceiling on a rod about one foot and take LED light bulbs that can be replaced.
Here is what the lighting in my studio looks like
Other factors that come into play are the amount of natural light coming in windows. I like to keep some LED lights mounted on floor stands, to move around the room as needed.