Buttercream flower help

Hi I made similar flowers using a rose tip held sideways. Pipe the buttercream(fairly stiff buttercream) straight up and release. Looks to me like they used a tip with a straight edge. You would pipe each petal starting from the center and working your way out. Or is it the other way around? I forgot now but practice first on a pan and see what happens :-) Its pretty forgiving. Hope that helps

https://www.youtube.com/watch?v=cXUAoJXmGsk At 6:30, it shows how to pipe this flower. I believe they use an “C” shaped tip… like the Wilton 401, 402, or 403

Thanks so much, gong to get the tips and practice x