Thanks so much for the critique including a response to my post and video clip which I know takes extra time to think about and respond to. I just kind of thought it was a good talking point for anyone who likes DaB. I was thinking about what Toniko said a lot in the organic perspective in particular because it just felt so random not establishing a horizon line and just making boxes via the Y method... I have no way to know if those boxes are "correct" and they are not rotating, they change depth and width and are not consistent. I just wasn't sure of what I was getting out of that exercise in particular. A lot of the time in that exercise I was not visualizing the box beforehand and only tried to control one general face of it and its scale; otherwise they just turned out how they turned out. I felt I was out of control of the form for the most part if that makes sense. I did not feel this way with the other perspective assignments. Your answer satisfies me though; like I said it was just a thought. I really appreciate DaB for helping people with draftsmenship in particular and as well as form rotational exercises.

To clarify I had the wrong pen size until after the tables of ellipses. So the rotated boxes exercise is all using the correct pen size and I emboldened the edges because he said you could do that via the ghost method to help it read better; "There are going to be a lot of lines floating around, so keeping them all straight in your head will be a challenge, but you can use some strategically placed line weight to help clarify where certain forms overlap. Just make sure that when you add line weight, you're doing so with a confident stroke using the ghosting method, just as you would when initially drawing the line." For the rotated boxes exercise, it turned out decent because I measured to assure symmetry from crossing point of the x and y axis. He does not explicitly say not to measure and I've been telling people whose work I review that if they want to help keep it symmetrical and nice look to go ahead and measure. You don't have to measure using the tick marks on the ruler, you can rough it out with your pen and finger or use string etc. But idk if this is good advice to be giving people. I did not use a ruler to make the boxes, I used the ghosting freehand method to make all the boxes as he said to do, but I plotted some points after making one initial part of a quadrant to help its symmetry by measuring my first quadrant first. I just know that my rotated boxes turned out nicer than most because of this and even so the internal sphere could have been a little rounder on the x axis and the perspective could have been a little more gradual I feel, but it's fine. I plotted the boxes based on neighboring edges which was the point.

I think my ellipses are the weakest and I think your critique reflects that accurately esp the funnels. Partially it was due I think because I was using an extremely thin pen and I go over the ellipse more than 2 to 3 so it is like you say hectic.

I will have to set aside some time to watch this Bobby Chiu video-- I've heard of him but haven't watch many of his videos. Thanks for the great review!

When you say 50-50 you mean sketch for fun/not exercises as much as doing the DaB assignments? Or do you mean you want me to review your work in return for your critique (which I am happy to do if you need one but it looks like you're a couple lesson's ahead of me).