LEDs in Parallel, each with its own resistor

I am currently planning a project to light up a model of a cruise ship. I've done this before with some success.

To keep things simple I want to wire in Parallel. (Assuming I've understood the difference correctly; Each LED will have a direct connection to the power source)

I will be using a mix of colours; White, Warm White, Blue, Red, Green. Every LED is pre-wired or will be fitted with a resistor (470) to allow them to be run from a 12v source.

Every online simulation I run and my own previous experience says this will work perfectly fine, but every article I read seems to scream "no don't do it" and even then, opinions seem to differ.

Above is an example of my wiring diagram, forgive the crudity. There will be a lot more LEDs used than this, but this gives you an idea of my plans.

Any thoughts?

Thanks

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EDIT:

This is the overall schematic that I have planned:

Sadly I cannot provide the direct link for this circuit as it is too long for browsers apparently.