Its all personal choice at the end of the day and you should go with what you think looks good. Each to their own
I prefer a more natural look but do use some fake plants in some of my tanks. I use them to hide pipes, heaters and spray bars etc which live plants cant always do and this looks alot more natural than seeing equipment in the background.
For example i have silk autumn maple leaves which hides the spray bar, brings extra colour to the tank and is home to my Amano shrimps.
So not all fake is bad
I prefer a more natural look but do use some fake plants in some of my tanks. I use them to hide pipes, heaters and spray bars etc which live plants cant always do and this looks alot more natural than seeing equipment in the background.
For example i have silk autumn maple leaves which hides the spray bar, brings extra colour to the tank and is home to my Amano shrimps.
So not all fake is bad