How To model Sprites

Hello,
In Game Hatricks I tried to insert a sprite Image but it turned out to be disastrous .
I want to Create it of Same size of that of bowling ball and the bomb.
Heres the Image

 

In what way is it disastrous? It looks OK to me.

If you just mean that it's a bit too big, resize it. Either scale it like any other object, or change the Pixels per Unit setting in the Sprite inspector (when you select your sprite in the Project tab).

 

Hello
not enough information to completely help you, but a good way would be to:

- make a copy of the bowling ball graphic file (to keep it),
- load the bowling ball in your drawing software (The Gimp, Photoshop..),
- load the face too
- Copy past it to the bowling pic
- Scale the face from there to match the size of the Bwl Ball
- Save your result
- Should be automatically be updated in Unity now.

Cheers

(JoeStrout's solutions would work perfectly too)

 

After resizing the White Background still remains sir .

 

No need for "sir." The white background means that either your image doesn't have an alpha channel, or you are not importing this image as a sprite. Click on the image in the Project window, and make sure the Texture Type is set to "Sprite (2D and UI)".

If it is, then you need to go back to your favorite painting program, and make sure the image has an alpha channel.