pixiv is an illustration community service where you can post and enjoy creative work. A large variety of work is uploaded, and user-organized contests are frequently held as well.
Base Model 3 by FVSJ on DeviantArt
Weapon Adoption 42 Halloween Special #2 CLOSED by Forged-Artifacts.deviantart.com on @deviantART
Base Model 20 by FVSJ on deviantART