my first Critique so here goes ^^ this is a beautiful peace of art i think that you spent a long time on it and tried your best.
it is detailed and planned out nicely also it is clear and doesn't hurt your eyes when you look at it. Its a cute piece of art but i couldn't help but notice that their shadow is a different colour to the floor also maybe you could use line art to make it easier to colour and shade, maybe put them in the center as well, lastly her head his slightly bigger than his so maybe you could work on proportion a bit more ^^
but other than that its a nice pic and a lot of effort was put into it the colours used look nice together.
lastly i have to say well done and keep up the good work ^^
sorry if my advice isn't that good but its my first and ill try to get better at it XD