I know what you mean about getting paints to do what you, but I still think this is pretty darned good. I find the veins on the hand somewhat alarming, but apart from that, I think this painting is great.
You must be kidding! I really don't think you need to take an oil painting class, maybe just a bit more practicing (but I thin the only way that doesn't look nearly perfect here are the veins on your hand). Great adaption and btw, you're more beautyful than the woman on the original painting.
I don't know if I would be able to do this with oil paint (I'm rather experienced in painting with acrylics and digitally).
I do need to take a class, although that shouldn't be taken to indicate a lack of confidence on my part.
I feel as though I have reached a point with oils where I have figured out as much as I can on my own without input from someone more experienced with them. There were technique problems I was having that I would like to know better ways to solve. It is a matter of wanting to know the medium better.
Also, I don't think there should ever be a point where an artist thinks "right, that's good enough. I can now stop learning."
And you're definitely right, every artist should intend to always push his abilities to the next level. And experience is very important, of course. Maybe for you it's the right way to take oil painting lessons. I learned through practicing only, which could mean that you sometimes have to go a long way round but it was a good way for me (and still is).
The result looks presentable here but that does not mean I found the process easy because there is a lot I don't know about the medium. I think there are better ways to solve the problems I was having that someone with more experience could help me with.