I'm going to try and look at each topic on flat Earth one at a time.

Today I will look at
No 1 - The Horizon rises to eye level and Perspective

No 1a)
In my example, we have a observer in a 6th story Window, looking across town at several buildings.  The first on the horizon, the second farther away, the third farther away still.
(See Figure 1)


No 1b)
- As he looks out on a flat Earth, he should see the 6th floor of every building in the distance at eye level.
- The ground should come up towards eye level
- The sky, the top of taller buildings etc, should all come down 
towards eye level
- Eye level should always be at eye level!
(See Figure 2)


No 1c)
What we actually see is
- that no ground is visible beyond the horizon
- The ground does not come up to eye level
- Buildings start dropping beyond the horizon
- The 6th story windows don't stay at eye level, they start dropping
(See Figure 3)

No 1d) Model of flat Earth.

No 1e) Model of curved Earth.

No 1f) Conclusions:
To me, these are indications
1) we are unable to see the ground due to curvature.
2) The ground does not rise to eye level
3) We should be able to see a large section of the flat Earth beyond the horizon from space, as it should "rise to eye level" and be visible beyond the "apparent" horizon
(See picture 1f-1 - Ship hidden behind horizon)
(See image No 1f-1)

No 1g)
Putting things in context;
- No ships are visible after 15 miles
- No cities are visible after 60 miles
- NOTHING is visible after 350 miles
(See picture 1f-2 - Toronto Skyline)
(See image No 1g)