Firstly, have you looked at the picture without the garage door open? It's adding light to the scene which may be stopping the camera gaining up as much as is necessary. Hence the backlight effect. Close your garage door, have no lights on then capture an image. If it's still poor, there are threads on here for the ideal settings for this camera to get good pictures at night ie the ideal balance between shutter, gain etc.
If that doesn't work, another alternative is to increase the ambient light levels. Option 1, a PIR sensor light can save electricity but you want it to detect at pavement level as cameras take a few seconds to react to change in light levels leaving a second or two of unsuable footage. Your pavement doesn't look busy so I doubt it will eb constantly on and off, at least not later in the night. There are also driveway beam sensors that can be used to detect soemone crossing onto your property. Again search on here.
Alternatively, a stronger dusk till dawn light (a dusk till dawn sensor can take the hassle out of the switching) and an LED bulb can keep the electricity cost low. Sometimes as well several lights with lower wattage may give better coverage than a single high wattage light. It all depends. You can always put 1 light up and then add others if needed. Also lights don't have to be floods, there's no reason why a light coudln't be decorative and either traditional or modern to your tastes. Just be careful not to place it / them too near to the camera or two much in camera view where light spill or direct view might affect image quality or create blindspots through dazzle. In your picture, the open garage door is considerably adding light to the shot which would otherwise be very dark. To that end, it looks to me as if you need a light in the centre of the drive, maybe a flood over the central pillar between the garage doors to light the driveway to illuiminate anyone trying to attack the a garage ideal if sensor controlled, and another dusk to dawn light near the front door to illuminate the garden / path up to the front door. Just my opinion and others may differ in their assessment.