Question about table etiquette.

Hello everyone!

I fairly new to the hobby or at least to playing against random people.

I have this army idea that I want to run Imperial Fists with a Last Wall protocol spin.

Paint a unit of IF here some crimson fists there,executioner etc. All of them are going to be separated into squads,so each squad will be from ONE chapter.

Rules of course remain normal imperial fists.

In your experience I have issues with players with my army being too many different colours or is it something accepted?

Thank you in advance!