My Second Set Of Cave Paintings

I don't know why their are two of these in the caves. If the do symbolize Clark and Lex, then perhaps the color one is today, and the black & white one represents the original 40's comic perhaps.

This picture seems to depict the alien parasite worm put in the cave to invect intruders. Infact, the kryptonian writings along side the painting comes out to be "Intruders Pay Heed". Heed is another word for attention.

The warning says "INTRUDERS PAY HEED", heed is just another word for attention.