Some good and bad points here, we’ll start the good as usual. Balanced image, good use of diagonal symmetry. Overall there's not too much to catch the eye besides the important bits, so the image isn't cluttered. The viewer can instantly see where the focus is, which in this case is bunnelby and buneary, since there's literally nothing else here. As far as the bad goes, the black line seem out of place in such an organic scene. They do set the pokemon apart, but they give it an artificial portion of something that seemed quite natural in other respects. Following the lines, there's one spot where you colored outside the lines, the lower spot of the balloon. It makes that part seem sloppy in comparison to the rest, something to watch out for.
There is not a whole heck of a lot of detail in this image, but what there is shows the effort you put in. Namely, those Japanese symbols are very well done. Kudos for that.
Color and Shading
I would say the color contrast in this image works for the reason of setting one pokemon at home and another as the outsider looking in (also hit on in the environment section.) Grey works as a very solid way to make bunnelby stand out, making him and his balloon this major focus of the image. At first I thought you were going for bunnelby by that logic, as buneary can sometimes get lost in the subdued reds and pinks. Since you were going for a love-based image/story, the color choices are very appropriate.We have here a warm image, mirroring the warmth of love and friendliness that the image is based around. The only downside I see in here is actually the lack of other colors to mix and create a more varied image. WHat we have here is nice, but maybe something extra could have added additional visual interest.
Now on to shading. Buneary has some really good highlights and shadows going on, you can see where the light is hitting and how it gives the different parts of her body their form, the curves show up nicely. Bunnelby does have some, although I do think some spots could have been darker. The balloon is the only part that I think is off, what with the light coming from the back it should have more lighting around the edges and darker in the center.
THe best texture here would have to be the cloud. It has a light fluffy feeling, it wisps around, and the lighting even gives it the diffuse, subtle color variations one would expect from such substance. It really is the highlight of the image in this category. In comparison, the two bunnies have little texture beyond the slightest of shading for curves. Being as I would assume both are fairly fuzzy (Buneary has these huge tufts of fur on its body, as well as bunnelby’s similar areas) that it would have been good to see fur on them. The balloon, which has a similar texture on it as the two pokemon, seems more correct, the smooth plastic/rubber surface needing that featureless material to look accurate.
Both pokemon seem right in both shading and form. You used original poses, which I always love to see. It shows both effort, creativity, and an understanding of form. Both pokemon have these great expressions on their faces that help to tell the story. Even though a lot of viewers would not be able to read what the balloon, says, the visual clues and emtional presentation give the meaning without a literal translation, things like that are the best way to convey how you want the viewer to feel. Let the people empathize with your characters and the connection will be much more concrete.
I like the fact you used both as shinys, it helped with the contrast and gives another element to the story, that they are both ‘special’.
So, I actually like this environment. I tend to enjoy abstract backgrounds for desktops and such, and this one both gives the image an artistic quality and fits the cute story you set up here. We have the clouds that tie into buneary’s tufts well, the colors complement her tones rather well. In contrast we have bunnelby standing out against the environment, we can tell that he is not from around here. It helps to add to the story you have going on, of Bunnelby traveling to propose to his love interest.
I cant say that the background is perfect, as its again very abstract and doesn’t truly define a location in the traditional sense. But I suppose ith the heart-shaped sun/light we have in the background it could be a dream or an interpretation of how bunnelby is feeling right now. Not sure which way to go there, if its good or bad. So i’ll just say its acceptable.
No major perspective issues, but nothing overly eye catching or dynamic either, very straight on view. Consider using alternative angles to add more intrigue, or to change focus, change the lighting, or other things like that.
9 hours? You’re almost up to the level of 3D modeling horrors, welcome and I apologize. Have bonus points for the effort you put in, and the creativity.
Texture is the one main thing, and consistency like with the black lines you used.
There were some good and bad elements here, but I think the effort and feelings inspired by the image give it a win.