Will those “crop artists” fly inward through the solar system to come see us? 

“Crop pictures” are not really that hard to interpret! First we can see that they will fly inward through our solar system, past the Asteroid Belt and Mars (with two moons), in order to reach Earth (with one moon): 

Next we can see that each side of their 1990 crop picture has grown an extra “dot” at the bottom, on both left and right, as we go from 1990 (on the right) to 2026 (on the left). 

Thus in 1990 (on the right) there were (2 + 1) = 3 small dots at the bottom, to indicate “motion”.

Now in 2026 (on the left) there are (3 + 2) = 5 small dots at the bottom, after the passage of 36 years! Amazing. Nothing seems to have been left to chance.