There are many ways to make such a signature photo. Let me introduce a few to you. In fact, the methods are all the same. Hope it helps.

Photoshop to create a youthful and sunny green grass signature photo

/photoshop/ps_feizhuliu/406.html

Photoshop to simply create a cute cartoon signature photo

/photoshop/ps_jichu/386.html

PS production of non-mainstream personalized signature photos of handsome guys

/photoshop/ps_feizhuliu/277.html

PS processing Non-mainstream photos: making punk style signature photos

/photoshop/ps_feizhuliu/56.html

Photoshop photo synthesis: cool summer MM personalized signature photos

/photoshop /ps_hecheng/321.html

PS photo processing tutorial: making dreamy and beautiful couple signature photos

/photoshop/ps_tiaose/148.html