It looks like you are goin for abstract. What inspired you to paint that much of it in the first place. Expand on your original inspiration or combine many. What does this face mean. Is it the face of christianity, face of your emotion. An artist of paint, music or any art starts with an inspiration or vision. Something to convey. If your just trying to make a pretty picture you will get stuck. What is it you want to express. For instance if it was the face of god, you would want to express his love, light, grace, peace, power. Love and and light can be shown by bright color, curves and soft lines and shapes. Power shown by bold color and sharp lines and shapes. Grace by maybe doing open arms as the eyebrows or something. It looks like a good start but yo may need to take a break from a project for a bit to gain new insight. Good luck