Changes uploaded as requested, I keep the shading but only 2 tones, green - lime green and orange - yellow. I add a different background on the circle in behind to match the interiors you mentioned. Also I re-work the lines in the Giraffe to match each piece, the head and neck with brown outline to accent, the T-shirt with dark orange outline to match etc.
Same layout of #55 on #69 & #70. On the dinosaur #69 colors green and yellow match with the original tone aqua of the skin, orange make a nice contrast I think.
If there is any other thing I can do for you please tell me.
Fracco