The first question is: Why have an image for each number from 000 to 999 (one thousand images)?

It is so that one imagined image can represent a three digit number - and that might be helpful for memorising a long number; or, if digits convert to letters, as a way to store 3 letter spellings.

I made a 1000 cartoon men system where features of the head represented extra pieces of information - and it was too complicated: the principle is ok but the time it takes to learn the bespoke cartoon faces is too long. So I have decided to make a fresh 1000 men cartoon image system.

Each person represents a vocabulary word. Their surame is that vocabulary word. Each person has one of 100 forenames. The forename matches a 2 digit number; so person 123 can have the forename that matches with 23. The choice of outfit will be one of 100 outfit types. Each outfit type will have 10 women nade who wear outfits which fit that genre.

I can use the 50 outfits article and base people's outfits on those categories. So 20 lots of 50 outfits would come to 1000. People 000 to 009 and people 500 to 509 would follow outfit type 00: actor; and as long as the outfit is consistent with an actor and as long as all 20 faces are distinct from each other then that is OK.

See a 1000 words list from a shorthand article.

Logs and anti logs

My old system hid 4 digits to do with logarithms in each man's drawing (and the women 1000 system did the same for anti logs). If I dedicate time to it, I could put both sets of digits into each man of a new 1000 man system:

Logs can use:

clothing colour

top clothing (using the Outfits article where a choice of 10 tops can represent 10 digits).

bottom clothing (using that same Outfits artice).

body type (in combination with skin tone).

Anti logs can use:

Hairstyle and hair colour to represent two digits (50 hairstyles and colour fills 0 to 9 or 10 to 19);

Nose type to represent one digit;

The mood of the face can signify something: digits 0 to 4 if the person is a man; and digits 5 to 9 if the person is a woman.

0. Happy

1. Worried

2. Angry

3. Determined

4. Smug

Using the Male 1000 system as spelling prompts within a scene

There is another article which continues talking about the Male 1000 system:

Coloured Actions and Male 1000 Spelling Prompts

Instead of treating the male image as a dictionary word representation, the three digit ordinal number of the male person within the 000-999 system is used; and the idea that each digit has a corresponding letter of the alphabet. So it is a spelling prompt aid.

I cover that in another : article

There is no low effort way to learn the ordinal position of each male 1000 image, in my opinion. The colour and choice of outfit is a clue but then you need to be very good at memorising outfits.

That is why the '10,000 Locations' article and 'Scripted Sentences' article both have sections about dedicating time to learning the ordinal position of those images and other ordinal images.