Common sense says it can be done.
Steps to make a model using 3D software:
1.Import the model sketch into 3Dmax.
2.Outline the model according to the sketch.
3, build the body of the dragon in 3Dmax.
4, then build the limbs of the dragon.
5, and then use 3D sculpting software for detailed sculpting, and finally imported into 3Dmax to do the final refinement and exported as stl file.