This, it is probably the first time for everyone to encounter your situation, because now we all apply electronically, and all pictures are electronic versions
Even if it is a paper application, then The drawings are also produced electronically, and it is impossible to draw them by hand. I really admire you.
Secondly, regarding your question, I suggest that you scan all the drawings you drew by hand, process them on the computer, and keep only the drawings. Remove all parts, borders, etc., and then paste them into the abstract attachment file and the instructions attachment file in the form of pictures, and then print them out; because if you apply by paper, all documents need to be in duplicate
Secondly, what do you mean by shading? The document itself has no shading. If you draw on white paper, there shouldn't be any shading.