It looks amazing. Stylized, sure, but really good.

Hey, @Miguel Nieto, I think it’s a pretty nice job! Personally, I love that it’s slightly stylized and doesn’t attempt to be a copy of the reference, and I truly like how you conveyed the aspect of the water surface. Please let me know in case you’d like to receive any critiques. And since it’s a study, I believe the best way to look at it is not for what needs to be improved, but for what you learned from it. If you like, perhaps it could be nice to do a little self-assessment exercise and notice (and even write it down, if you want) how this practice contributed to push your skills and knowledge farther. The good thing about this is that is doesn’t matter what, how much or how little you feel you learned, there’s always something to take from it, and every bit counts to take us one step ahead from where we were before - and that’s how we grow. Hope this helps. Keep it up. Best regards!

Saw this today and it motivated me to ge my sketchbook out and here is my attempt at it with ink

Oh hey it's you,I think you did pretty good on capturing the coolness of the iceberg.I think you also capture some of the shape design of the iceberg.I think the biggest critism I have of it,is the edge play seem very repetitive. For example the part where light meet the shadow area on the left iceberg,I feel the edge you did was too sharp and made it harder to focus in on any one part [This part particulary in the picture below] My second critism,is that I think you made the half tone in the light area too dark [Another pciture to show what I'm talking about] For example,look at these 2 painting by Gregory manchess.Observe how he group the light value closer by making them lighter. My final critisim is I feel you did not capture the light reflection on the sea.James Gurney made a wonderful post on how to capture this reflection here http://gurneyjourney.blogspot.com/2007/12/water-reflections-part-1.html .But his main teaching is that you should think of the water as an inverted mirror but slightly darker. Well that's all I got,hopefully this was all useful and not just a waste of time (And if it was,best regards anyway)