The Biker

Comparing artist:heavymetalbronyyeah's work as seen on this site compared to the five pieces posted in the link you gave, and it is very clear that NONE of the five pieces on the page you linked are even remotely close to the style that heavymetalbronyyeah does his art in.On top of that, if you actually take the artwork of artist:artguydis then you will see that this piece is clearly drawn by the same person.