Well that is so true.
Lets look at the pic I did a couple days ago.
So ideally I wanted this to be a crazy down shot with an extreme perspective. But even if it is an extreme perspective there are still rules of anatomy and perspective. So here we go, just follow the numbers.
The numbers are in an arbitrary order: I numbered them as I found them. Also I saved the file really small then accidentally deleted it. So this is the only remaining copy of it. My bad, but I hope you can see it.
1. I gridded out the floor of my drawing based upon the position of the feet, assuming that they were just shoulder length apart and pointing straight forward normally. We can see that the vanishing point is behind the monster near his belly button. The grid gets one thing right, its a down shot, but its more a 45 degree downshot than say a 75 degree downshot; thats extreme! Thats the first mistake, the feet of the monster do not indicate the ground plane to be extreme enough.
2. I boxed out the pelvis of the monster and drew a line straight down the middle of the pelvis. If you follow the line all the way down to the ground plane it will give you the place just beneath the monster and the place where the wait should be centered. However, the wait of the monster is not centered there. The feet are in front of that spot, the red feet indicate where the correct position of the feet should be to even allow the monster to stand.
3. We quickly jump up to the sword. Follow the perspective lines of the hilt and it will terminate near the back of the monster. But the sword blades continue past this point. If a sword is basically a plane, then all the lines of the plane should terminate at the vanishing point. Do they no.
4. Same deal with the horns, follow the perpsective lines to the vanishing point. Now if the horns are of the same height then technically they should lie on the same perspective line. But they don't. If they were to fall on the same line the horn closest to the viewer would be off the page. That would be extreme!
5. The right arm of the monster is weird. Lets say the length of the arm of the monster from the shoulder to the elbow is 1, then the length of the elbow to the wrist should be 2/3. However, this is hard to measure because the arm is foreshortened. It is possible to measure with perpsective, but I decided to opt out, because just looking at the arm it looks to short, the wrist and hands should be bigger.
6. The hilt of the sword is basically a cylinder and like all cylinders; circles that are drawn within the cylinder farther away from the horizon become more like circles rather than ovals. Did that make sense? Probably not, just look at a soda can thats placed on a table. Look at the lip of the top of the can. Its shaped like an oval. Now use your x-ray vision and look at the bottom lip of the can, its still an oval shape but more circular than the top lip. Anyways this same principle applies to the sword hilt, and it fails miserably beause it became more ovular farther down the hilt.
7. The eyes don't line up properly with the perpsective lines placed down by the horns.
Anyways, there are more mistakes to be found within the drawing, but those 7 alone pretty much peg the major issues. Oddly enough the mistakes together form this weird perspective that could possibly fool one(me) into thinking its an extreme perspective, when in fact there is no consistent perspective. But ya. Time to study up on perspective some more.
