The links are broken; however, you may find that the best way to get feedback on your work is to present your work! :P If you only post reference images, then the most we can really give you is "sounds cool" - we need to see how you combine all of these researched images into a design. I find it's helpful to write some information about the character first, and then create concept art from it.
An artist called "theChugsBoon" made a character sheet questionnaire - which will help you brainstorm ideas for a character.
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https://uk.pinterest.com/rhys424242/game-art/
https://uk.pinterest.com/rhys424242/dragon-ball/
https://uk.pinterest.com/rhys424242/comic-book-bosses/
https://uk.pinterest.com/rhys424242/skin-textures/
https://uk.pinterest.com/rhys424242/mystical-creatures/
An artist called "theChugsBoon" made a character sheet questionnaire - which will help you brainstorm ideas for a character.
http://thechugsboson.deviantart.com/art/Blank-Character-Sheet-2-1-3-390-Questions-460031650