Great work on the composition! My eyes are pulled to look at what Kisshu and Ichigo are looking towards, the tree. You did a great job of keeping that the focus because the tree has the highest contrast (dark color of the tree trunk + the light color of the pink leaves). The decorations on the side of the walkway also help to lead my eye from the couple to the tree. I'd give you an A+ for eye-movement.
You also did a really good job on coloring Kisshu and Ichigo. The lines and coloring are very clean!
I would advise you to watch out with brushes though. The parts that you created with the textured brushes, like the leaves, grass, rocks, and tree trunk stand out in the drawing in a very distracting way. : ( They stand out because (1) they are in a different style than the rest of the picture, and (2) they are placed in a very repetitive way. When something like blades of grass look too repetitive, it looks a little unnatural. I think your backgrounds would look a lot better if you hand drew them like you did with Ichigo and Kisshu.
That's all my criticism for now! Keep up the great work!