These are my very fist sprite works, they are over a year old, if not older.
In the first row you can see two newcolours and one decolour of Lyra's sprite from HGSS in Kris' colours from Crystal.
The first two sprites in the second are new colours of Kris' sprite from Crystal, the first one in Lyra's colours and the second one in her artwork's colours.
Last but not least we have a selfed sprite of Kris based on her official artwork.
These sprites are free to use as long as you don't claim them as your own.