We don't make mistakes, just happy little accidents. -Bob Ross

Bob Ross has a twitch.tv channel and it's incredible. You can check that out here. Bob Ross passed away in 1995 but his TV Show still inspires people today which is evident of the popularity that this Twitch Channel generated over the past year.

What you will be building:

Lets treat Interface Builder like our empty canvas.

Let the painting begin.

Drag onto the canvas, a UIImageView and position it towards the bottom of the scene.The UIImage that we're going to place within this UIImageView is a .png file I was able to find on the internet. The size of this image is 1280 (w) x 800 (h). Ultimately, we want to stick to this aspect ratio in Interface Builder. We don't want our UIImageView object to have a width of 1280 and a height of 800. With all of the different iPhone/iPad screen sizes, this would look different on every single device if we supplied it with explicit constraints like this.

Add an Aspect Ratio constraint to this UIImageView. After selecting this constraint--open the Attributes Inspector to be able to view details on this specific constraint. The ratio should be 1280:800 or 8:5 (broken down by the greatest common devisor). By adding this constraint, we are insuring that this aspect ratio sticks, if the width of this UIImageView is ever set to 8, then in turn the height will be 5. If one grows, so does the other staying in line with that aspect ratio (which is awesome).

Now you should constrain this UIImageView to the View. The bottom, leading and trailing edges of the UIImageView should equal the View.

Through those three constraints, the width of this UIImageView now has a value (because we've constrained the leading and trailing edges of this UIImageView to equal the View's trailing and leading edges) and considering our height and width work with each other (because of setting the Aspect Ratio) we've technically set the height on this UIImageView already!

Select the UIImageView. In the attributes inspector, set its image to Grass. Run your app, it should look like the following screenshot:

Add another UIImageView to your canvas. Place it near the upper right corner. This will be our Sun. Feel free to select the UIImageView and set its image to Sun.

The following constraints should be added to this new UIImageView:

• The height and width should be the same. Hint: Aspect Ratio.
• The width should be 0.25 of the View's width.
• The top and trailing edges should equal the Views top and trailing edge.

Run your app, it should look like this:

Add another UIImageView to the canvas. This will represent out SmallTree image (so feel free to set the image of this new UIImageView to SmallTree.)

The following constraints should be added to this new UIImageView:

• 139:230 should be the aspect ratio of this UIImageView.
• The width should be 0.3 of the View's width.
• The Small Tree UIImageView bottom should equal the top of the Grass UIImageView with a multiplier of 1.25.
• The leading edge should equal the Views leading edge.

It should now look like this when you run the app:

Lets add another UIImageView onto the canvas which will represent our Tree. Feel free to set the image to Tree.

• This UIImageView's width should be 0.7 (multiplier) of the View's width.
• The UIImageView's bottom should equal the Grass's top with a multiplier a 1.3.
• The UIImageView's trailing constraint should equal the Views trailing edge.
• The aspect ratio of this UIImageView should be 1100:823

The app should now look like this:

Bob Ross has nothing on us! Congrats (so far!).

You should add two more UIImageView's. One will represent the cloud and the other will represent the kids playing. Without telling you exactly what the constraints should be, you should figure out those constraints on your own where the app looks something similar to this:

Here it is on an iPhone 7 plus:

Here it is now on an iPhone 5:

Feel free to add more trees, other objects and constrain them to each other (similar to how we did this above). I think this could use a lighthouse, it could also use a bird. Share with me your masterpieces and send me a screenshot of your finished product on slack!

View this lesson on Learn.co