After people have had a chance to consider the set and offer their ideas, we can see where they want to go with it, and I may be well be in the minority on various questions here. I like solid, unified symbols for home and end, Mogo, though I'm not married to the current choice; I am not crazy about |< and >|, but the users will decide that. (|< and >| are also common and I would prefer something different).
Delete is also commonly used nondirectionally, and I do like the big fat X, especially if there is no pitchfork rabble demanding legends on the big mods.
On scroll lock, I plead 100% guilty. I went round and round trying to figure out the right legend, and SCROCK is almost a placeholder. As text, it does not fit in with the rest of the legends, though the letters are arranged gridwise rather than as a normal word or abbreviation. This is the key I think is most likely to change.