Kaleidoscope

The image repeatedly re-captures itself, creating swirling, infinitely receding tunnels like facing mirrors.

This is for a motion graphics video. Apply "Video Feedback" (also called a feedback loop) to [scene]: the picture re-captures itself, so a smaller copy of the whole frame sits inside the frame, another inside that, and so on, receding like facing mirrors.
Each copy should lag a beat behind the one around it and be turned slightly, so any movement ripples inward and the tunnel swirls — trailing copies of the moving subject alone would be an echo.
Let the tunnel build and twist over [duration].

Starbursts, rings and streaks of scattered light appear and slide as a bright source passes the lens, added digitally to graphics and footage.

This is for a motion graphics video. Add a "Lens Flare" to [scene]: as a bright light source crosses the frame, show the light scattering inside the lens — a starburst and a long streak on the source itself, and a chain of rings and soft discs strung along the line from the source through the centre of the frame.
The chain must slide as the source moves, with the far ghosts travelling the opposite way — that sliding, shaped light is what separates it from a light leak, which is only a shapeless wash from the edge.
Let the source pass through over [duration], and fade the flare in and out as it enters and leaves the frame.

Soft warm washes of orange, red or magenta light bloom in from the frame edges and drift or flicker, imitating stray light hitting film; unlike Lens Flare it has no rings or starbursts.

This is for a motion graphics video. Lay a "Light Leak" (also called a film burn) over [scene]: a soft, warm wash of orange, red or magenta light that blooms in from the edge of the frame, as if stray light had reached the film.
Keep it shapeless and blurry, attached to the frame rather than to anything in the picture, with no rings, streaks or starbursts — those belong to a lens flare. The footage keeps playing underneath.
Over [duration], let it swell in from one edge, drift a little, and fade away again.

One image or shape smoothly warps into another while cross-dissolving.

This is for a motion graphics video. In [scene], use "Morphing" (also called an image morph or morph): one subject smoothly warps into another while the two pictures cross-dissolve.
The outline should bend continuously from the first shape into the second as the surface blends between them, so it reads as one thing transforming — a plain dissolve would only fade one picture over the other without reshaping anything.
Give the change [duration], and hold on each subject before and after so the viewer can read what it turned into.