Your organic arrows are looking really good. Your lines are confident, your hatching shows a clear picture of the overlaps, and it clearly shows that it's and arrow in a 3D environment. As for your organic forms, they have good form and the contour lines are well-positioned.

As for your textures, I could see that you have a good understanding of the cast shadows but you could make the left side of your texture analysis a bit darker to make the transition from light to dark a bit smoother. Refer to this: https://d15v304a6xpq4b.cloudfront.net/lesson_images/7d1f3467.jpg. As for your dissections, you did well to break the silhouette and wrap the texture around the organic forms.

Your form intersections are looking great, clean linework made the forms look solid and the additional line weight on the intersections are clear and the intersections themselves are looking correct. Your organic intersections have solidity, a clear interaction with its environment, and the contour lines did a good job in giving its form.

Overall, I have very little complaints. You followed the instructions well, and you showed that you grasp the basics of how 3D forms interact in a 3D environment.