Servus Mate,
How's the yellowing overall? Or r there just some leafes? Just by the looks of the leaf i'd say she's missing food. Mine used to drink a lot of juice during stretch... and you gave her a lot of space for the roots.. so she can go easily 200cm+
Pics in the diary look good and vital👍 and mine was also more lime green and a bit brighter..
Good luck for the rest of the way.