how to make this card design in flutter with help of stack

Please try this :

class MyApp11 extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Demo(),
    );
  }
}



class Demo extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Stack(
        alignment: Alignment.center,
        children: <Widget>[
          // background image and bottom contents
          Column(
            children: <Widget>[
              Container(
                height: MediaQuery.of(context).size.height / 3,
                color: Colors.orange,
                child: const Center(
                  child: Text('Background image goes here'),
                ),
              ),
              Expanded(
                child: Container(
                  color: Colors.white,
                  child: const Center(
                    child: Text('Content goes here'),
                  ),
                ),
              )
            ],
          ),
          // Profile image
          Positioned(
            top: 200.0, // (background container size) - (circle height / 2)
            child: Container(
              height: 130.0,
              width: 200.0,
              decoration: BoxDecoration(
                  color: Colors.red, borderRadius: BorderRadius.circular(25)),
            ),
          )
        ],
      ),
    );
  }
}