I really don't think you'll need it. You've barely got any brow bossing whatsoever, an EXTREMELY feminine chin, big eyes, good cheeks. Only possible issue I see is the nose, but I don't think it will be a big enough one that you won't be able to pass.
If you want my opinion, you really shouldn't even be considering FFS until you've been on HRT for a while. Because HRT does a significant job of feminizing the face all on its own. Lots of girls who thought that they'd never pass because their faces were too masculine (myself included) ended up reaching the 1.5-year mark or so and suddenly everything started working out. And really you can't make any final assumptions about your eventual passability until around the 2-year mark or so. So unless you have a specific feature that REALLY keeps you from passing, like a very square jaw, a very heavy brow, or a really big masculine nose bridge, I wouldn't worry about it.
I mean, you can get it if you want to, it's just that if you wait, you might end up happy with yourself anyway and save yourself $25,000.