hello
please let me introduce a character image maker, the Epic Characer Image and Token Generator.
please check it on: http://epicgenerator.net
you can make character images like this:
also, nice character images can be built using computer games & related toolsets.
such as Neverwinter Nights 1, a D&D computer game.
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if neccessary, these images can be edited in Graphics Program such as Adobe Photoshop.
to add special effects for example (which is simple, just apply filter or few).
Keep em coming!