Sound holes?

This morning everything seemed ok This is the result:
..... after starting to work on the bars the tip of the upper one came lose. Have to clamp it for some time before I can continue.
Time for another important detail: the sound-holes.
I won't copy all the details of the instrument by Linarol exactly. I don't find the typical venetian scroll and the f-holes very exciting. Instead of the scroll I'm going to make a dragon-head. More or less flame-shaped soundholes go better with a dragon than f-holes.
I want the holes to have aproximately the same size/surface as te original.
After some tries...
This is what came out:
Left the original shape of the Linarol viol (left side. The right side sound hole is a lot wider)