Not sure where the home is located, I think concrete floors are a great choice for homes in warmer climates, the lime color would be neat.. but may not be attractive to many if thinking about re-selling home anytime in the future.. usually rusty tones or grays tend to be more neutral.

Generally you can do pretty much anything with a house if you have the time and money. with a limited budget it does limit what you can do especially for kitchen remodel costs. A kitchen renovation needs plumbing - where is it located in the garage now? Will you build your new kitchen etc on the existing concrete garage floor? If you build a new floor above the existing garage floor that may give you more options for remodeling. Let us know about these answers and we can try and give better advice. Also consider talking to a local kitchen contractor or kitchen cabinet shop - they may be able to answer many of your questions and you will want to talk with them eventually anyway for your project. To get a cost of the cost to remodel your kitchen the website http://www.remodelormove.com/kitchen-remodelling The calculator gives the cost to remodel your kitchen broken down by labor and materials

The red brick wall as a backdrop sounds very interesting. You can get quirky posters of various liquor brands like Jack Daniels, Chivas etc in black and white and get it framed and put them on the wall. Also industrial look is very in so the bar top can be done using a copper sheet over a plywood top instead of traditional granite or marble. Also utilise any empty beer bottles or wine bottles to make a customised chandelier. For stools you could have wrought iron stools with leather seats matching the brick wall. A small wall shelf with a display of shot glasses will make the look more interesting. Hope this is helpful, it will be great if you can share pictures of the area to give some more inputs.

ips flooring tends to get a flat gret texture once laid and dry. How to get a perfect concrete texture on it? Like in the picture below.