Title sounds more like "Ready for Seasons"

Each piece represents:
-Different Art-Style
-Different Lighting
-Different Atmosphere
-Different Setting
TIPS:
Different contrasts can prioritize which is more important for the viewer to look at. Another way for this is lighter outlines.
Gradient is used for darkening the image that is less likely to be stared at or less important. Brighter images often what our eyes look at most.
Manipulating sources of lights can also be used the same way with gradient, but a lot more subtle and natural and mostly unnoticed
Lighting effects give depth to the lighting and also can be manipulated to directing the viewer's eyes to what's most important. Sun rays
makes the objects feel like they have depth, but use it wisely and do not overdo it, like I did.

If you want to prioritize characters a lot more than background, give the background an analogous look.
Which means, all the colors are similar to each other (ex. red trees, magenta clouds, purple fruit, blue sky)
And the characters are wearing colorful outfits that does not match up to the background, Which makes it easier to differentiate
the background and the characters. It also prevents the characters from blending too much to the background.

Details can also be taken advantage of. Put less details on places less likely to be looked at, such as a tree far far away.
Also, it can be also used to put hidden things that is most likely not be seen by the viewer firsthand.
Details can also be used in an absurd way, such as overdoing and misdoing. Putting too much and/or putting them in wrong places and wrong ways can confuse and/or complicate the picture.