You need to change the texture of body.
1.Find the eye texture in the folder with the texture
2.Then find go to C:\Program Files (x86)\Steam\steamapps\common\SourceFilmmaker\game\workshop\materials\models\characters\michaelaftonsl and then click on michaelaftonsl_body_diffuse.vtf and make png. file
3.Make the same thing with the eye texture what you want
4.Then download Paint Tool Sai and then open the image of michael and the eye
5.Put the eye into the michael's eyes (in sai) and then save it
6.Then make vtf. file
7.Go to sfm and go to the model and then go to eye and then $basetexture and find the vtf. file what you made and put it in the $basetexture and you're ready.

Finally I can go to the vacation.
If you don't know how to do this I'll make a video about that.

引用自 LordZack：

You need to change the texture of body.
1.Find the eye texture in the folder with the texture
2.Then find go to C:\Program Files (x86)\Steam\steamapps\common\SourceFilmmaker\game\workshop\materials\models\characters\michaelaftonsl and then click on michaelaftonsl_body_diffuse.vtf and make png. file
3.Make the same thing with the eye texture what you want
4.Then download Paint Tool Sai and then open the image of michael and the eye
5.Put the eye into the michael's eyes (in sai) and then save it
6.Then make vtf. file
7.Go to sfm and go to the model and then go to eye and then $basetexture and find the vtf. file what you made and put it in the $basetexture and you're ready.

Finally I can go to the vacation.
If you don't know how to do this I'll make a video about that.

Cheers!