Ah, a young and aspiring artist! You've been getting better and better with drawing humans, especially in your latest three pieces. Throughout your gallery, I consistently find lighting to be your strength. From the beginning, you use blackness to a great streamlined effect(Tentacool and Zoroark) and colorful lighting(Aurorus and Morelull) for saturation and pop. You can also use highlights to good effect(The bright, cheery lighting in Rowlett and Surskit, the eerie glow in Salamence and Litwick).
Most people start off with cell shading and flat colors and bold lineart only, but you show promise in further areas. My favorite of yours is Rayquaza. The way he emerges from the night sky, only his glowing markings showing hazily in the far back is a sight to behold. I can't wait to see you gain more polish in your artwork and continue to improve. Keep up the good work!