You can go look at others tanks and get an idea. But what most do is plant the large plants to the rear, medium plants in the middle, small in the front. Red does not normally make a good center piece. Try mixing your colors up a bit. try planting in sections but not everything all in one place. Divide stims, planting them an inch apart or so. Remove all the plants for pots and fur stuff and plant them directly. Attach some plants to drift wood.
After planting, set back and look at it for a week or so and when you see something that looks odd, think about moving it. After a while you will get it just right and then it will be time to trim and maybe you will want to move something again. This is a never ending hobby. That's what I love about it.
Its your tank. Your style. If you like it great, if you don't then change it.
There is no right or wrong way as long as your fish are happy and you are happy.
Just have fun
10 gallon hospital tank.
29 & 50 gallon - High Tech C02 enriched.
50 gallon Pond - Natural.