I must say that this picture looks very great. The colours you have used totally fit to the motive. Everything looks really warm and comfortable. You can see how they feel for each other only because of the colours. The way you have drawn their lips is amazing, I love it. Also I need to point out that I like how you have drawn Roxas. He looks so cute and innocent while he tries to kiss his boyfriend. The flowers in the background make the picture look harmonic and peaceful. As much as I can see you must have spend a lot of time with colouring this picture.
I totally like the final result and hope to see more pictures like that!