well nice effort but i think you should to improve a lots of pixeling technique the outline was very jagged. i think you should add some layers behind the base so that the colors wouldn't hide the outline.
also, maybe you'd better add some shading and highlights on to it. some tutorials of pixelling art are spreads around here and those will help you out :3
ummm if i may give you a suggestion, i will say, don't use a base use your own base if you want to improve more skill that you had uwu
well, that's all from me
wish you improving soon!