These images are from Blake Little's book called "Preservation", featuring people dripping with honey, giving them the appearance of being preserved in amber.
http://blakelittle.com/preservation-book-cover-2012-3/​

Krzysztof Bielenin is a concept artist from Warsaw, Poland.
http://www.bielenin.com/

Unfortunately I wasn't able to find any personal information about Quentin Mabille other than that he is a french concept artist. I've been a huge fan of his "Metal Ruins" for years and it's about time to show them in my blog. These four paintings are prime examples of what I mentioned before, concerning concept art. Your imagination just goes wild thinking about the story behind the scene depicted. If I let myself, I can get absorbed in those paintings for hours.
http://quentinmabille.artstation.com/

Working under the banner "Stag & Serpent" Glyn Smyth is an illustrator, designer and printmaker from Belfast, Northern Ireland. His interest in folklore, myth and magick is the inspiration to his art. I can see a lot of art nouveau influence in his design aesthetic which is something I really love.
http://www.stagandserpent.com/gallery/