Using Illustrator using the shape, pen  and curvature tool and arrange tool , symbol spray can and colour tools, resize and rotate.

Create an A4 page with RGB settings

Choose the shape tool , click on the triangle in the bottom RH Corner to expand

Choose the colour you want before you draw.

Click on the colour swatch on the Toolbar

Double click the black square and the colour picker will appear

Choose the colour in the centre  rainbow 

Choose yellow and then click on the tone in the large square

Click OK when done

Drag and draw a circle for the centre of the flower (holding shift as you do will keep the shape in proportion).

Start with the pen tool but choose a pink before you start the petals.

Click and move to create the petals, you will go over th centre

Click on the start point to finish your selection.

Click the select tool at the top of the tool bar and move the pink flower, you will see the yellow circle underneath.

Click on the circle, right mouse and choose arrange.

Bring to front, You can then move over the petals

Create another yellow circle and this time you will be using the curvature tool to create the petals.

If you forgot to change your colour, draw your petals and then click on the first anchor point to complete and then choose your colour orange whilst the petals are selected.

Choose Window from the top menu and then swatches and click on the tab for symbols

Select the orange flower with the yellow centre 

Click the plus symbol in the symbols box

Add a name and choose static symbol

Click OK

Your flower will appear in the symbols box

You can drag this symbol as often as you like to use it

Using the spray can

Click on Help on your top menu, type in the search box symbol sprayer tool and then click on it

It will be install just above your colour swatch in your tool bar.

Click on the symbol you want to spray and then spray or click seperately to place each flower

Transform, Resize, Rotate and Group, copy and paste

You will notice as you click on the flowers you created that they are 2 individual elements - petals and centre - you can group these as follows:-

Draw round them to select or click on both keep hold on control, right mouse and choose group

These 2 items will now be one image