Concept Art Portfolio Guidelines

Strong fundamentals
Consistency of techniques
Consistency of style
Consistency of final quality
Consistency of presentation
Consistency of research shown in the works
Consistency of growth
Consistency of narratives and directions, coming in groups of works and projects

Plagiarize
Only do fanarts
Have every piece of work be a popular online tutorial, a course or trend, showing no expansion of the skills learned
Have every piece being vastly different and unrelated techniques, styles, presentation, art direction
Show yourself as a messy jack of all trades in a concept art portfolio - all sorts of skillsets in a production shown at once
Use “style” as a mask for weak fundamentals
Have a portfolio that aims at nowhere, no consistency, no company, no vision

Example of great concept art portfolios for reference, ranging from game, film to animation

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