https://fancyproductdesigner.com/product/birthday-card-mspc/

Is there any guide to create a product as this one ?

The input text area and color, font selection will be showed in the right par

There's no specific guide for this, but you can follow the below guide to get an idea and create a similar product.

Here is the Guide:  

https://support.fancyproductdesigner.com/support/solutions/articles/13000072228-business-card-example-setup