How to place 2 images in one place Flutter

I am completely new to flutter and I have to do something like this

And for the second part, my right image is made from the left image and another image that color is blue.

Don’t be confused!
I am gonna explain in a better way:
first I have to place these 2 images in
a row(something like FrameLayout in android)

AND
The right image has been made from an image that is left image And another image color(Image that has only 1 color)

I hope you got it

>Solution :

If your issue is about overlapping two widgets, you can use Stack to handle it.