Sketchup itself can input accurate values (convenient for planning).

There are also many maps of aquatic plants.

Even generating a three-dimensional model is simple. The daylight effect is also good.

And PS is only suitable for the later stage (of course powerful). Of course, you can also draw a plan with cad and import it into PS.

But there are too many steps.

PS can't draw a plan.

But the combination of the two is the best. Beautify the layout and print with PS.