A few modifications of the LPC base sprites to better suit a cave level I was working on. I did not create the base sprites, I just modified the colors and made a few slight modifications:

* Expanded the cave opening to allow it to be larger and more tileable

* Created a few more corner variations to allow for more complex wall layouts

* Added an additional variation of the front ridge tile to break the monotony

Hope you can use these. No need to mcredit me, just the original authors.