I agree that more DoF is needed. Also, maybe it's just my monitor, but they seem underexposed.
I think they look a bit low in contrast; a snappier tone curve in post would make them Pop! a bit more. The tilts on the other hand are too much for me...
The drinks looked quite nice. The bar top look like real granite or whatever, and the lights in the background--EXCELLENT!!! Festive!
The ice cream treat looks delicious, but it seems to be "falling out of the frame" because everything in the shot is pointing downhill!! The yellow plate, the napkin, the ice cream, and the spoon--ALL are pointing down and left...not good; contrast that with the tortilla chip and the guacamole--those two items are "pointing inward" and "meeting one another" in a VERY GOOD compositional idea. Not to pick too many nits, but the man's hand in the guacamole shot looks a bit less-than-elegant...
One thought--what about square compositions, if you wanna' do the so-called Dutch tilt thing??? I think that type of deliberate tilting looks ungainly in vertical 3:2 aspect ratio photos, but looks much better in SQUARE format.
Anyway--the drinks--great idea, good location, GREAT BACKDROP with those lights! The chip + guac--solid, but could be better. The ice cream treat--needs an entire re-work.
I know the restaurant might be lighted dimly and low-key, buty if that is so, then the pictures need a bit more "oomph!" to register when seen on menus, or in such dim lighting...I would try bumping the contrast upward and making the lighting effect look more crisp, bright, fresh, and festive.