playful crayon of a tree

natureinspired illustrations childfriendly childinspired educational playfulness imaginative background childrenas atmosphere expression whimsical childlike depiction materials childrens energetic funfilled captures colorful artistic creative elements material playful vibrant strokes designs foliage texture childas natural artwork drawing primary outdoor crayon nature create bright colors simple design lively joyful sketch leaves trees thick ideal rough marks vibes edges style kidas vivid scene happy youth kidsa tree bold book