A combined effort

Collaboration is the name of the game in our house.
Usually in the following manner: the HD3QBEM knits diligently all day, at dinner time discovers a mistake well back, gets frustrated, leaves it to me to reverse out of quandary and restart forward progress.

But!   This regular pattern is sometimes interrupted with positive collaboration and below is part of the result.   Which of these two halves do you think was knitted by the HD3QBEM?  Left or right?

Whatever -  the results look good but cannot be displayed in full glory yet as this is for a gift.