hi well this is globally clean but there ara good deal thing of small things that u could have done better and which when put together maybe gave the feeling to the reviewer that thing was ok enough so to speak …
first of all u have a hierarchy problem the big title being popping out less than the subtile … this is because of the choice of the color in the first place and this is reinforced a feeling due to the lack of contrast with the background of the main part of the central title … which is , in the end , hardly visible rather than being the first thing that people can notice … let me remind u off the fact that contrast is not a small issue this is a basic design principle and basically violating it , in itself , may bring much trouble to the table
the bullet with the price is not only misplaced about giving it an impact - have u heard about z-shape reading process and focus point? - but this is also crammed because of the way loaded it with texts which is not properly organized inside …
phone number: as for it , as a designer from a small design agency, what i can tell u is that anytime u come up with a disposition like this which is creative , well customers eradicate it , they make u change it … plus the fact of the matter is that it would have been more legitimate for u to flag the text in the right rather than the left …
bringing a bit more breathing between the bottom margin and the footer elements would have been welcome not only for the general balance but also for the aesthetic of your whole item
“new 2020” is not only misplaced, close to being unreadable , lacking contrast and not bringing anything to the table when it comes to aesthetics, graphic design and content
but the cool thing is that u have a nice base to work with 
