Your fakemon are sloppy and some aren't really fakemon but retypes or recolors
That says nothing whatsoever about what could be IMPROVED on the sprites. What you just said is a bit offensive, and you should think more carefully next time you burst out like that.
Here's my crit. :3
Your Chingfloon and Pikalett's outlines seem to be quite off.
I think the Chingling's mouth part should have been placed more to the centre of the balloon, and a bit thicker on the lines. I also think that the balloon part would look better if it was more smooth. The ribbon/whatever it is part may need to be connected to the balloon part a bit better.
Pikalett's ears seem too close together, and need to be spaced out a bit. Same applies with its eyes, space them out a couple more pixels.
The Ampibom/Roserade? fusion looks fine. But I think the black area of Ambipom's face seems off. Try changing it to a pale pink or something.
With all of the fusions, excluding the Pikalett (because there's only so much you can edit of it), I feel that you didn't do enough fusing. You just recoloured to suit the 2nd Pokemon, and added some small things. I think your fusions would look alot better if you edited more than just a couple of areas.
If people are complaining about your fake Divide and Multiply, because they don't seem edited enough. Really, there's only so much you can do for those, and you did it. You reposed, and you recoloured, and changed the + and - symbols to multiply and divide, and that's all you need to do for them.
I thought of that once as well, and they're good ideas. <:
Although I do think that the Whismur and Mareep edits could use some more editing to make them look less like the originals. I'm not too sure about the red bud. I think it needs more of an umph to it. I can't quite put my finger on what's needed.
I don't really see what's different about the Rotom sprites, except that they've been recoloured. Make sure to adjust the ENTIRE sprite when retyping.
I hope my crit's been somewhat usefull. :3
Good luck. <3