No, it's not. If you get yourself a piece of welding glass and use it to look at the sun you will clearly see the solar disk. If you put two marks on that piece of glass that mark the diameter of the sun and then check it throughout the day, you will see that the sun is always the same diameter. You can do it with the moon as well and all you need is your thumb. Have you ever noticed that the moon looks really large at moon rise (which violates the heck out of you prospective rules!) yet smaller when higher in the sky? Hold your thumb out at arms length and compare your thumb to the size of the moon at moon rise. Later, when the moon is high, hold your thumb out again and compare your thumb to the moon. You will find that the moon is the same size. Go and try these things for yourself.
The radius of the Earth is 3,959 miles. The average distance between the Earth and the sun is 92,960,000 miles. At noon, the sun is approximately 3,959 miles closer to the sun. That is a difference of (3,959/92,960,000)*100% = 0.00425%. That is a difference well beyond the resolution of even the best of cameras. So your statement is true, but immeasurable.
Actually, everything I said changes the accuracy of your graph. You neglect the scale of the solar system. You failed to adequately explain why the sun goes above and below horizons when your model requires it to circle above the Earth. You failed to verify your graph against things that you can observe and measure with your own eyes and simple tools. Do you honestly believe your sketch explains why a sun rotating above a disk disappears from the bottom up at sunset and appears from the top down at sunrise?
Why hasn't this happened? What is preventing flat Earth scientists from establishing these things? Why aren't they out there investigating and measuring and publishing papers?