A very old piece from irkenevangelion. One that he did back in September 2013. Surprised it wasn’t on this site and I felt like it deserves some more recognition for the amount of effort put into it. It’s very colorful and fun to look at.  
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A mix of Franken Fran, My Little Pony, and Bioshock.  
From Left to Right:  
Mars Miner (http://marsminer-venusspring.tumblr.com)  
Penni (ask-penni.tumblr.com)  
Chaotic Noteworthy (http://ask-chaoticnote.tumblr.com)  
Chocolate Krunch (neapolitan-the-nsfw-mare.tumblr.com)  
Norian Sky (dukesofrock07.tumblr.com/)  
Echo Flame (crash162.tumblr.com/)  
Pinkie Tai (darkfiretaimatsu.tumblr.com/)  
Dia Belle (dia-belle-woodenapple.tumblr.com)  
Fran Madaraki (askponyfran.tumblr.com/)  
Lilith and Mr.Cumberdale (lillith-answers.tumblr.com/)  
Sam Grest (http://connitarad.tumblr.com/post/98069111730/yknowjust-like-anypony-ever-dsgr)  
Odd Ends (http://oddends.deviantart.com/)  
Pendleton Dreadful (pendletondreadful.tumblr.com/)  
Esaias (nistethmod.tumblr.com/)