The tears look a little cartoonish (I think it's the really bright blue), but I love what you did for the rest of the drawing. I especially like how Flowey's side of it looks much more chaotic and almost shaky than Asriel's side - it definitely illustrates their personalities, as well as the atmosphere of the player's encounters with them, very well. :)
Note - I'm not sure if it's necessary to put your username in the title of the piece, since Newgrounds's layout always puts the artist's username somewhere visible and close to the title (in that little box with the artist info, in the name of the browser tab, beneath the title where it shows up on the Art Portal.)