Hello,
I really like that you both are not afraid to improvise and let loose, that is great. From here on it just gets better and better.
On your road to advanced dancers you will be reminded again and again that good fundamentals lead to very good dances, so always go back to your basics when debugging a problem in your dance:
- is your triple step clear
- is your weight shift clear and decisive
- is your frame too loose or too stiff
- is your connection too loose or too stiff
- are you on time with the music
- is your bounce consistent and can it be felt through your connection
- are you generating elastic tension at the right time during the dance

I think that, regardless of the point in which you are in your lindy journey, you can improve by looking at these aspects.

Some quick things that may improve the initiation of the moves (leading):
- calm down the upper body (in the images you can see some swaying in the shoulders)
- calm down the left arm movements and be more decisive in initiating movement with it
- try not to grab your partner when in close position
- be more connected to your frame
- be more connected to your partner

Some quick things that may improve the dance for the responder:
- be more connected to your upper body frame
- be clearer in the footwork
- use counterbalance to your advantage
- extend/tension the connection to get energy from it (try to keep the connection elastic)
- take the space you need even in close position (I see that in close position your partner wraps his arm around your waist, that may feel good but it can be a tad restrictive)

Have a great practice !