Assignment 3-Feedback

My results are in for my assignment from my new tutor. I could have done better, although he has said that the report was written bearing in mind that I have embarked on the degree so maybe I do need some strong structured criticism. 
In general my work should be to a higher standard and I need to look a new ways of working with different media in a much more open, expressive and experimental way. 
Firstly I have been asked to send more work than I sent and my sketchbook. I'm very confused as I believed I was doing what was asked of me for the 360 degree studies and the sketchbook walk with 4 drawings in each. My tutor says I could have filled the book with the walk alone, and I concentrated on "irrelevant signage". I'm not sure what that means!
My drawings of cloud formations seem to have  made a good impression, and I have looked at Contables cloud studies as recommended as well as some of Monet's drawings. Although I do like Van Gogh's dramatic sky in the picture below, Wheat Field with Cypress Tress.
 


Plotting space through composition "is lacking intent and believability" and "looks amateurish." 
Project perspectives, "variable and inconsistent." The course work says to draw vanishing points on my work, and does not say to re draw those that are not correct, only to examine what was drawn. Now I'm questioning myself if I'm missing something that I should be doing or should I be following the guidelines written in the course text?  
Project townscapes. "Looks a little better when drawing without gridding up vanishing points." This could be the best comment so far. 
Study using line. "The pen and ink line drawing looks as though it has some successful parts to it." This also seems positive until a line I don't understand: "You are making a picture here as you did with the plotting of space instead of investigating the view in spatial terms in real sense." Again, what does this mean?
Drawing from statues I believed was my weak point in the exercises. My tutor seems to like this drawing giving the advise that I could have looked from a different angle or view point which could have made some interesting foreshortening images. Something I had not considered and will remember for another time in a similar situation. 
Drawing trees. "The most successful piece in the assignment from what I can see from the images is the larger study of a single tree in inks. This looks like a good drawing; direct, open, made with intent and using a media inventively; THIS IS A DRAWING! You should approach more of your subjects like this." At last something he likes! I will admit I love this drawing even though I don't normally enjoy using ink. 

The group of trees is not as strong I would agree with that comment. "You have tried to make a picture here AGAIN instead of investigating your subject through the act of drawing as you did with the ink version." It seems that my use of light, tone, texture and shadow lets me down. I think I'm getting it now, there is a difference between a drawing and a picture and I was looking at them as the same thing. 

      Drawing:

1.

the act of a person or thing that draws.

2.

a graphic representation by lines of an object or idea, aswith a pencil; a delineation of form without reference to colour.

3.

a sketch, plan, or design, especially one made with pen,pencil, or crayon.

4.

the art or technique of making these.

Picture:

1.

a visual representation of a person, object, or scene, as apainting, drawing, photograph, etc.: I carry a picture of mygrandchild in my wallet.

2.

any visible image, however produced: pictures reflected in apool of water.

3.

a mental image: a clear picture of how he had looked that day.

4.

a particular image or reality as portrayed in an account ordescription; depiction; version.

Sometimes things are so easy and looking straight at you, you cant see it!

My question now is should my assignment piece be a picture or a drawing?

Assignment piece.

View from a open door.

Not enough prep work and the 2 sheets I sent were very basic in their enquiry. I find this difficult doing prep work knowing what I intended to draw and the media I was going to use.

"The resultant assignment piece is poor. It lacks tonal variation, an understanding of light direction and how light and tone relate to the use of colour. The mark making is almost non existent; the the drawing is very generalised and lacks presence. You have been far too easily satisfied here and overall feel of this piece is somewhat amateurish. It is imperative that you investigate your subjects through the act of drawing. This is an attempt to make a picture and an ill conceived one at that. The qualitative level of this drawing is well below that required at degree level one."  

Seurat and Van Gogh could be beneficial to study tone, mark making and colour.