This is really very nice!
Paint is the only program I ever used to make any LBT computer fanart from scratch. In many ways it is easier to use than photoshop I think, but on the other hands photoshop allows for many more possibilities for those who have mastered it (not me at this time)
Your picture is really interesting, is there any story you had in mind when drawing it?
It sure is a dreamy look that fits to Ruby. Perhaps she is thinking of her family in an affectionate rather than a sad way of thinking.