So, the thing is, your Mom has probably just ALWAYS been this way, and you know that. But NOW... it is more pronounced, because you are now a Mom and have kids. So these irritations are just sticking up like a sore thumb. And it is... grating.
So what can you do?:
1) realize she and you are this way. But you know that anyway.
2) Ignore her, and let her have her way. Like you did this time at your house
3) Ignore her BUT STILL do things in your own way in your own house. Despite. And then, come up with some simple one-liners to tell her when she critiques you or makes those sound effects to show her irritation.
4) Sit her down, and in an adult manner, have a talk with her... and make it clear, in a diplomatic way, that you are your own person and this is your own family. And you are the kids Mom.
5) Just ignore her, because you know she is this way... and it is very hard... to change someone.
6) Know that, at least your Dad is more human and accepting of people's characteristics. But your Mom, is not.
Personally, I grew up with a Dad that was similar to yours and we were very close. But my Mom was cold and non-accepting and similar to your Mom. THUS... I knew, what I could or could not, expect of my Mom. But now that she is older, she is better and got more human.
Yes it is irritating.
7) As your kids grow up... (this is what I did with my kids since they were Toddlers), I TAUGHT my kids what the pecking order is and the Totem Pole of things. Meaning, we have pushy relatives... BUT so, I taught my kids that *I* and my Husband are the parents. WE have the last say in things and decide things. AND that THEY CAN speak up too, to those pushy relatives. My kids, KNOW our own rules and preferences for things. So, if a pushy relative, for example, tells my kids something or tells my kids to eat something that they know is not usually our way of doing things.... THEY TELL THAT PUSHY RELATIVE "I have to ask Mommy first...." Or they will say NO to that pushy relative. They speak up. They have NO confusion, about "who" parents them or makes decisions for them. If a pushy relative tells them that they can do something and "we don't have to tell your Mommy..." my kids do not allow it. They tell me, and they tell that pushy relative "No. I don't want to do that." So, it is about teaching the kids too, about HOW to handle, those pushy relatives. Otherwise, they may get stressed too.
8) Know what, you can or cannot expect of your Mom. She is not the kind of Mom you hope she would be. She is not. So realize that. But at the same time, it is your house and your kids.... and you do not have to "demote" yourself, just because she is around. If you continue... to "demote" yourself in your home and with your kids whenever she is around... THEN you will be creating a "habit" of that and a vicious cycle will become entrenched, and you will not have... any stature, in your own home nor with your own kids. Keep that in mind.
AND your Husband, has to be on the same page.
Do not let your Mom, put you down.
You... have to rise up and keep your Stature in your family and in front of your kids. In a dignified and self-assured manner. REMEMBER that.
Don't demote yourself.
Some Moms unfortunately, never "accept" their own offspring and just critique. Its wrong. But so rise above it and don't expect your Mom to be all warm and fuzzy and ideal. She is not.
But BE the Mom in the house and keep your place in your family and with your kids. Don't let your Mom.. usurp you.
My Mom, does that to a sibling of mine. And then she wonders WHY that sibling is so resentful. Duh.
But oh well, not all Moms have warm wonderful relationships with their daughter.
You are not your Mom. She is not you.
Don't try... to be what she wants. Be yourself.
You sound like a more warm and fuzzy Mom, than your Mom is.
Good for you.
Don't think you are letting your Mom down.
You are not a child anymore.
Be proud of yourself.
Do not let your Mom sabotage you.