Portrait painting, Alla Prima and direct method

I wash disappointed by my painting, so I took a couple of workshops of the school. 1st one is portrait painting from live model. Yes, this workshop is exactly what I needed. here is the final product (unfinished). Using photo and using live model have big difference, and using live model make painting easier to obtain realism for me, sure there are some disadvantages too, tho. 

And after this workshop, I took Alla prima. I absolutely love it. Of course until I get it there were a lot of frustrations. But once I got general idea what Alla Prima is, it was a lot of fun with cool brush strokes. Asian male is limited palette, and man with blue shirts is full palette.

Since the model of the evening class had to leave a moth early, we had an opportunity to try direct painting, it is like Alla prima, but 8 day length. It was great fun and I see my improvement in fresh tone. I could only attend 4 days, wish I could finish this work....