Removing the dark outlines did indeed make a difference. Now if you could accentuate with a single line here and there, that will give it so much more… ofcourse it’s a very hard thing to do… most artists take years to learn to do it properly. Practice is the key here 
I still think though that if you would shade the darker parts darker than they are, you would create a lot more depth.
I’m really glad to see you are not skipping the perspective chapter. It’s very important I think, because everything we see in real life is under the influence of it. On paper/canvas however, we have to create the illusion that it is there…
Also good exercises are (to be done in that order):
- draw a square on the floor with chalk, then sit in the same room. Draw the square you see from your position. Change position a few times to do different drawings
- drawing boxes
- drawing a barstool, chair, table,… things that look angular but with a slightly more difficult shape than a box
4.same as in nr 1 but with a circle - draw a ball from different positions (you can go faster here)
- drawing circular, cilindrical shaped objects (vases, bowls, plates, etc) from different positions
Keep going you’re doing great!
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). I like your suggestion on perspective, I think I get very caught up in the minutia and miss the big picture. When I finished it, I noticed it looks like the table is sort of squished at the back of the rug rather than centered on it, but I was totally oblivious to this while I was drawing it. I think if I look at things as above/below the horizon, that will help - and also maybe help me to remember to look at the 







