I can see and feel how enormous they which you did very effectively well.
The artwork is fantastic I can see your style in their with the designing but keeping the original toy/cartoon designs in their.
Colours are done wonderfully with all the really bright light and shading. I feel the afternoon weather atmosphere and the background was a good idea with the city being around them due to the size and where they first battled in the cartoon.
Great work and talent shown here.