If you struggle with tree tops (winter) then use a piece of masking tape(run your finger over it first if very sticky)
Rip out a half moon shape as picture, stick at the top of your proposed tree then paint your twig ends over the shape onto the tape and lift off for a nice neat distant tree top or tops.
Remember the branches and more so the twigs get weaker nearing the end

Because of the need to close the lessons the feedback is non existance in relation to the large viewing numbers ;)
Neil