Hey, Will
I can't see it either! I've looked in your albums, and the general gallery for the last 2/3 days.
If it was oversize, the software ought to have rejected the upload, and informed you, but in case it did not, check the file size and longest side are inside the limits. If this is OK, I can only suggest you try again. Try putting it in a new album first, so you know exactly where it is supposed to be, then if this works try annother upload into the gallery you wanted it in.
Keep us posted. (no pun intended!).