Vestas,
I'm surprised no-one else has commented on this yet. Although I did have to copy off the image and rotate it to fully see the work properly.
Yes Yew is a wonderful wood, the grain and colours really make things made from it strand out.
The finish on the vase itself is very good and remembering that you are still fairly new to turning, please take the following as constructive thoughts.
The vase body neck area, needs to be either a distinct change in direction (actual sharp corner) or more smoothly flowing from one to the other. You're somewhere between the two here. Strangely people working in ceramics can get away with this, where woodturners can't, and I cannot work out why.
The vase stands on a straight sided base that looks to be far too tall, making is shorter and possibly tapering it into the branch area would have lightened it's appearance.
And you have tool damage where your tool left free space and hit (not cut) the wood, that will sort itself out with time and experience but it is a shame as otherwise it is a fair piece of work.