Support :
part 1, part 3, part 4 : no support needed
part 2a , part 2b : support at base plate only

Adhesion : i use brim for poor adhesion

What to print :
part 2a has no phone stand slot , part 2b has phone stand slot . They can be printed together and swap when desired. depend on what you want the figure to be (a phone stand or just a figure)

Additional advice:
perhaps try printing part 4 (the face) vertically so to minimizes the layer line on the face.

Artist ig :
www.instagram.com/jayjay.sculpt

Disclaimer : it may looks like from one of the paid model from other sites but i simply done it from scratch with one of the free T-pose model (which is also free).