Good start! It was more complex assignment than initially expected. It took me a few attempts, and I still have plenty room for improvement.

Beginner here, so I could be wrong. I think you are leaving too much of the original sphere. Especially on the side away from the viewer. I think you are trying to compensate with some contour line of the profile but it is too soon to do that. Be careful about how much you slice off Also watch the angle of the head. The last one looks pretty good, but the others look a little off. I believe the strength of the Loomis head is establishing the head angle from any angle. Focus on that in the beginning.

Hi @Nikita Thakur, nice studies! - I think you would appreciate learning some measuring techniques, to help you with getting proportions correct. This video gives you an overview Measuring Techniques. - I understand that you're eager to add in the features, but I think learning to draw a simple loomis head properly is what will help improve your drawings the most. Much about the success in head drawings (or when drawing anything that is three dimensional), lies in having good structure. When drawing the head, try to think as if you were sculpting the head like a sculptor. You start with large volumes then break them down into more and more detail. You might appreciate this video Structure Basics – Making Things Look 3D. As you'll see further down the course, structure is also the key to drawing the features realistically. Hope this helps :) Let me know if you have any questions!

I think the large nostril mostly but he has real character so kudos on that.