This was Zerios back in 2010 with an arm cannon. based off of the Metroid Series. pretty cool drawing.
and the Metroid feels look good x3
Attributions:
Latios © Pokemon/Nintendo/Gamefreak inc.
Samus Aran © Metroid/Nintendo
Art © http://firagare.deviantart.com/ (Firagare)
Zerios © DrawingEnatias