Hi,

I will critique your work and try to give you the best advice that I can.In the organic intersections exercise I think that as you were about to reach the end,you had either lost your patience or were not able to figure out as to where more forms were supposed to be drawn and as a result,some of the forms are arbitrarily floating.You are not required to draw an infinite number of forms,a few confidently drawn forms with lineweight and cast shadow will definitely do the job.

In the duck(first page),the countour curves drawn on the feather mass are incorrect.Although drawing the legs that are behind are not that imprtant as they are not visible,you should still draw them properly with a general understanding of how the leg connects to the torso.You have done an excellent job while drawing the horses,especially the head part.Nearly all of your drawings are excellent,showing that you have understood the exercise.YOu arefree to move to the mechanical section aka drawing objects and vehicles.