It is what it is, but at the very least you now have water that's being diverted away from the house.
You could plant shrubs/etc in front of the flex pipe to camouflage it.
Consider this. You could bury the lateral pipe a few inches below the surface of the dirt, run it as you have it laid out to the corner where the sidewalk meets the driveway. Then put an elbow and drain fitting (flat surface type) at the corner and water would flow out of it and then across the driveway.
The only problem is that the corrugated pipe would sit full of water after the rain stops because it's below height of the pipe exit. If you used perforated pipe, the excess in the pipe would flow out into the planter box slowly, but don't know how wet that planter would be if it rains regularly.
