These are the NPC Sprite by Dispari Scuro and Alcaro and the Info Box DX Sprite by yoshicookiezeus, but adapted to be used with VWF Dialogues Patch by RPG Hacker. They're configured so you can display up to 32 different messages using just ONE sprite! Read the readme for some info. Other details are in the .asm files.
EXTRA BIT: Will force the sprites to read colors from another palette when deciding the message to show up. Also, in the NPCs, it will force them to assume another set of tiles.
The Yoshi tongue is comprehensible; probably, the sprite GFX takes its space. It's a matter of rearranging the tileset inside the sprite code. As the warp pipes... dunno. Could be a problem with your vwf cutscene or similar.