Tattoo?

So this is a tattoo design my friend had asked me to do for her about 1.5 years ago (or more). I started roughs but never really felt inspired, and as a result, hated the ones I came up with. That is, until recently, when I stumbled upon some very cool cherry tree designs. I never thought to put the heart of the design into the trunks until I saw these examples. Using these examples I learned to draw the trunk a certain way. I would have actually copied the tree trunk from said examples, but its too damn hard. Much easier to learn the pattern and do it yourself.