Select the green circle on the right and drag it into the main canvas using the Move Tool. Place it in the top left near the small waterlily.
Change the mode of this layer to Overlay 100% and use a Hue/Saturation adjustment layer to change the color of this circle.
Select the red circle from the circular vector image in the bottom of the middle to add to the big waterlily on the right of the canvas. Change this layer mode to Linear Dodge 100% and add a mask to this layer. Use a soft black brush to remove the part covering the waterlily.
Add a Hue/Saturation adjustment layer to match the color of this circle with the background.
Select the blue circle from the circular vector image on the top left to add to the lower right area besides the middle circles. Change the mode of this layer to Linear Dodge 100% and use a Hue/Saturation adjustment layer to change the color and lightness of this circle.
Open the set 0002 and select the second circle in the third line to add to the middle bottom of the main document.
Make a Hue/Saturation adjustment layer and change the Saturation values:
Select the green circle in the second line to place it in the left of the middle circles and change the mode to Overlay 100%.
Create a Hue/Saturation adjustment layer to change the lightness and color of this circle.
Make a new layer on top of the layers and activate the Custom Shape Tool. Select Triangle Frame and pick the color #63a1ec to draw a triangle on the lower left of the middle circles.
Double click this layer, choose Drop Shadow. Set the color of shadow to black.
Duplicate this layer and move it downward a bit: Change its layer mode to Overlay 50%.
Apply the Drop Shadow effect as done with the first one.
Continue duplicating this layer and move it upward a bit. Change the mode to Overlay 30% and apply the Drop Shadow as done with the previous layers and the Stroke effect with the following settings:
Duplicate the first layer and move it to the top of the layers and right click this layer, choose Clear Layer Style. Change the color of the shape to #260741 and the layer mode to Hard Light 50%.
Add a mask to this layer and erase most of the shape, leaving some dark shade visible on the edges.
Make a new layer below the triangle ones and hit P to activate the Pen Tool. Use the Pen Tool with Path mode to draw a shape as shown below. Press Ctrl+Enter to turn the path into a selection and fill with the color #52c7f9.
Make a Curves adjustment to bring more light to the top of this part. Paint on rest to keep its lightness.
Create a new layer and use the Elliptical Marquee Tool (M) to draw a circle on the canvas. Use a large soft white brush to paint inside this circle.
Hit Ctrl+D to deselect this circle and convert it to a Smart Object. Move it to the top right of the middle circles and use Ctrl+T to resize it to be smaller. Change this layer mode to Overlay 100%.
Duplicate this layer and lower the opacity mode to Overlay 70%. Continue duplicating it twice and move them to the lower right and top left of the middle circles.