Suggestions on work flow for my project KWML [closed]

KWML stands for King,Warrior,Magician,Lover based on the book by Robert Moore and Douglas Gillette. As with the name, the project aims to create 4 pictures with each of the archetypes , more like symbolisms of the archetypes especially in an NPR render form, more or less like the art in the animated movies "Entergalactic" and the recent Miles Morales Spiderman animations.

So to begin , I was to gather assets or possibly make them, get them done and layout and then composite and render to get the results . But this has proven really difficult in large part to the fact that I am out of my depth in even the asset gathering stage and modelling and sculpting stages. Yes even stage one has proven very difficult. In that regard I'm asking for suggestions , constructive actually to get the project going . I appreciate all the help and suggestions I could get on any connected topics or concepts to NPRs and the lot to get this going.

Ill share more information as per responses cause the issues are cumbersome .Thanks for your consideration guys . appreciate it