Afraiding my standards have dropped, I want to ensure how everyone feels and what I can do better for my clients.
Images :
This looks fine. But I’d suggest something like adding customers at the other tables within the GFX. But other than that they look really good. 
I like them! One tiny thing though: the plant pot looks a little low quality compared to everything around it, but other than that it’s great!!
The burgers has something missing to me, I don’t exactly know what but something is missing. But the meat, oh the meat, it looks so tasty that I feel hungry lol. So, the bun should be darkened on the bottom as if it was cooked properly. Right now, your burger is really good, this just to say what I would add. Other than that, the burger the gfx is outstanding.
I noticed that the food on the waiters hand looks like it’s about to fall down.
Probably cheese I guess. Its hard to imagine a burger without a slice of cheese.
Maybe the sesame seeds? I mostly see those in burger buns.
you should add pbr materials for the wood and maybe a plate or make your own material, but right now it looks very bland and dull. so just add a bit of bump. and i suggest removing the glossyness from the stake and add more bump to it
The background seems very dark (Lighting) and the same as what @pinchpoitmaster said add “customers at the other tables”.
This is good but maybe make the hair less glossy and more textured and the font for the icon could be changed to something more formal since it’s a steakhouse! 
In the lower image with text, the man on the right has his hand going through the table.
It’s good but there are no knives or forks to eat their steaks with. I hope they’re not going to pick it up with their hands.
Se Ve bien! Siento que Hacen Faltan Personas En las Otras Mesas, Pues Se Ve Vacío, Pero sigue estando Bien, Lo Otro Es que siento que hace faltan Unas Bebidas Con La Comida. Pero Buen Trabajo
I like the GFX a lot! 
However, you may want to change to toppings on that burger…
Looks really nice, looks toy like! Maybe change the color of the text as it blends with the table and chairs
The client requested a specific amount of Characters 
It’s not about to fall down but the waiter was showing the food to the customer.
Translation: Looks good! I feel like people are missing at the other tables, because it looks empty, but it’s still okay, the other thing is, I feel like we need a few drinks with the food. But Good Job
Thanks for the translation! Appreciated.
Looks super well made, But there’s one problem with the icon:
