weight could be 0.6 - 0.8( makes it flexible for styles ) - trained for 768 or higher - to keep close to her old design try any of these - or put in Neg to reduce chance - SFW/NSFW
may need to add 3d, or realistic, in neg for certain 2d/anime styles due to having more 3d image training - or lower weight for less influence - higher the versions
V3 - should be more accurate but may be the last version - due to the difficulty of training birdo
For appearance
Birdo, pink skin, two-tone skin, or white belly, purple eyes, eyeshadow, ,Lizard tail red bow,
may get mixed results with tail, white claws, etc, may need to try other prompts
did not test mouth prompts , I assume its naturally Mouth open, - suggest tongue in NEG if you dont want it to spawn randomly
hair bow may turn brown or gold