First french design is classic french with gel polish on natural nails ->
I used Bluesky 504 +536 as a base here. Then using Bluesky 501 I made the french line.
The second nails are again with gel polish.
I used Bluesky 504 +546 for a base. Then again 501 for the french. The difference is the ring finger here- I made moon french + silver crystal.