This looks very much like this snapshot from the Sonic 2 prototype. The font is also not in italics.
The wall on the right is also missing. The enemy is also missing
Sonic runs off the ramp.
Another scan of the same picture
In the beta (above), sonic runs down the ramp, instead of off.
These screen shots match the dumped beta.
This shot matches the beta ROM, exept for the shield appears on the outside of the tube
Another true to final screenshot, except this seems to be a screenshot of a TV.
Sonic and Tails near the infamous "Tails 1-up"