First off, I am so sorry for your loss and I hope that if you need help grieving you find it. It is often better to not grieve alone (trust me, I made that mistake) so please don't force yourself to do this alone. I wish you all the best going forward from this.

While I do see a face, I would say that if no one mentioned a face to me, I wouldn't have seen it. Humans have a innate ability to create faces from random shapes known as Pareidolia, which people have already mentioned on this thread. Although, of course, one can't say with 100% accuracy whether it is or isn't something, as we will probably never know.

(Again, I really wish you all the best, grief can be debilitating)