I like the nice flowers. The deers in the background don't distract. Is this crop or full frame? If no one is moving in the car and if the engine is off, then you can pull off sharp image even at half of this shutter speed.
At lower shutter speeds, if the subject is stationary like this one, and if you have some time, then you can use MLU after placing your camera on beanbag.
I like the two in the bg, think they complement the image.. got all looking right at you !! dof wise not sure you could cover all under the circumstances, might even have shot wide open ... I know you could make a sharp image at even lower shutter speeds as Saby pointed out but sure makes me nervous !!!
Would take a little of the top and then eliminate what is left of the tree ... sure like the flowers !!!