All-around lighting includes general lighting and natural light. You want to ensure that at any time of day there is enough light for everyone to effectively use the space without incident and that any dark areas are minimized.
It’s important to understand that even on a sunny summer day natural light from a single window is not always sufficient to thoroughly light a room and of course this is especially true come nighttime. Additional light sources near your window will allow you to subtly fill out the light scheme and achieve a balance so the space feels beautiful at any time.
If your cabinets don't go to the ceiling consider adding lights above the cabinets. Using a more powerful light source such as a T5 fluorescent increases the reflectivity of the ceiling thereby increasing the light in the room. While increasing light levels is important it is equally important to minimize glare. Use matte finishes to reduce light flares and glare.