Hey...sorry my portuguese has evaporated...great picture i find...attractive to me...i like the warmth...feels cozy. Good experiment. Also...overall I really like your work...great perspective and composition. Congratulations. Bonitas Fotos...thats all i'll say.
The child's inquisitive nature, and the mother's devotion, are beautifully captured. I would not use so vivid a color scheme. To me it pulls the eye away from the central emotion of the portrait.