This was a simple design, since the original Strike Gundam was simple aswell (aside the Striker Packs), used some fanart mechs, i think one of them was called Magic Gundam (By Jilpoong17).
Well this strike gundam looks like heavy version of the strike.Also those feet look like the Zeta Gundam's or the ZZ Gundam.Did you use any other Gundam series?
isnt that shield from the Five Star Stories mecha design? looks familiar xD
wow, that's quite drastic change