hi indeed, well there is an impact from everything , and thumbnails may help if this is good enough and may hurt a bit if this is not but , as for i know, i do not think that your item can be rejected for this … LOL
the fact of the matter is that i am sorry to say just this but there all kinds of mistakes here …
1- colors
sorry , man , but u should put a mention to ask people to put their glasses on to see your work as they will hurt badly lol sorry i just kidding but no offense ok … i just try o make u understand in a funny way that the colors are very aggressive for eyes … u have to think about complementary colors and shades of the same colors to build something harmonious visually speaking in terms of colors …
2- fake logo
well sorry to tell u this but u have to invest some time in an attempt to create a logo that looks credible and that will take your item’s preview to the next level rather than helping to ruin your preview …
3- contrast
this is somehow some way related to point 1 …
some of you texts are barely readable to say the least and are clearly not popping out … this is thus very difficult to get into deeper details, which is much of a problem or a menu … as people plan to get to know what they are about to select or eat
4- global style
at this stage this is too repetitive a structure that u have here and this is making your item completely lose commercial potential as basically even if someone managed to like this job , they could redo it very easily and in a short while so that they would rather redo and save time rathe than buy it and save time …
u need to push the envelope graphic design wise, this is too simple right now … have a look at the works of some successful professionals creatine menus such as @Novocaina, @seasonOFTHEflowers or @BigWeek
5- identification
what u do should transpire what this is made for … a mexican restaurant menu should transpire mexico and mexican food … with what u have , we have no identity at the first glance …
6- typo
this is too basic , not original enough, lacking font combinations and variations , something that will add relief to your work and typo as well as build a hierarchy of information too …
7- hierarchy of information
here and now u have nothing really popping out or being outstanding … when this should be the other way around … but i guess that playing with all the things that i said before would change it all …
8- color system
with what u have now i guess that u did not select cmyk colors and that is a problem for a “print template” like a menu … as i am as certain that these colors , will differ much while shifting to cmyk colors … (yeah i know that u have to redo anyway …but this is for u to identify that u have to start working with the good settings right from the beginning …
9- trim line …
not sure i am right or not but the document seems not organized properly , unless u cut the item following trim lines before displaying it here … as u may know u have margins to give in case once the item is printed ,u have the final format … so this basically means that spaces on the left and on the right before the cut should be slightly bigger …