This is an articulated Magikarp. It can move its spine and fins. It is a high poly model and can be scaled up to be very big and not lose a lot of quality.
Set up for multi material printing.
If you do not have a multi material printer. I have uploaded STL files optimized to be printed in place and clipped/glued together.
I have also posted this on MyMiniFactory containing the blender files for those who want them.
I hope you like it.
Modeled by me buy uses a modified version the the ball joint by ELLINDSEY
Please note a lot of this is guesswork as I do not have a multi material printer and have been unable to test it.
Using Cura as an example
Load parts into your slicer and set their materials.
Join the parts, they should align to their correct placement then scale them to whatever you want.
If I have done this right I believe it is possible to print it all at once with 4 materials, 3 colours and a dissolvable support.
I would suggest at least 150% scaling as some parts are delicate.