Hedgehog boys back to the drawing board

So having some difficulty with filming i thought i could get away with less background designs but i need to build up fast add a few more frames ... i dont know animation so this is all in camera trickery and limited motion with puppetry. Im thinking im going to need some green screen and find someone to try a bit of animation with . But im not giving up yet . I want to see this project through . The first part is about 10 to 15 minutes in length and im splitting it into 2 part so around 20 minutes to 30 in total . Maybe shorter than that . I think i need help. What do think is the best idea to ramp production?