Well sorry about that then, it just doesn't work for me personally. Everyone else may love it so don't listen to me...lol.
might want to try a more subtle trasition on the gradient so it isn't just a straightup change from light yellow to dark yellow. Try to make it so that the darker yellow is on bubblebee because his foot is light and it makes the lighter yellow harder to see, and so that the lighter yellow is more towards the darker portion of the sig. Make so more or less its the same color- the color change is a little drastic. I would also advice making Transformers darker. Idk about the logo there. Other than that i think its fine.
that looks quality but i think you should redo the text maybe use the transformers font from dafont and maybe a little bit more detail in the bg other than that nice work
either remove the logo,or find some way to make it look like a part of bumblebee (resize and blend perhaps?) other than that,i love it.text makes it look like a movie poster imo