I cna understand ripping from someon'es art if you then intend to expand on it further to make it truely your own. Even then you should seek permission from the artist to use their or a portion of their work. But straight up copies with out permission or accreditation is plagiarism.
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"By keeping others at a distance you avoid a betrayal of your trust. But while you may not be hurt that way you musnt forget that you must endure the loneliness." Friendly Hostility Fanboi