Momotaro Peach Boy (桃太郎)

Inequalities:

(x² + 4(y+1)²) [(x² + y² - 3)sqrt(x² + y²) - a(1 - by/sqrt(x² + y²))^ln(c + abs(x)/sqrt(x² + y²))] < d

a = 5, -1.25, -2.1, -2.2, -2.36, -2.6

b = 0.84,  c = 0.5,  d = 0.1

( Softwares used: Graph, PhotoScape )