I dunno, do you like this (from our recently remodeled livingroom w/open entry area? Like Kah says, the easiest place to start is from color -- at least that's what my designer wife did first.

yah

Instead of the solid grey, you can go for sketches in grey with flashes of mustard/ yellow. Or, look up these links for wallpaper ideas https://goo.gl/images/OrCtY1 https://goo.gl/images/0ZpAmU

Dear Shubham, I am Ravi Prakash and I am an Architect. A lot of information required to start with any project, like context, site, plot, budget, timelines and many more. It appears like you had not consult a professional assistance for your hotel as I don't see anything interesting in this building. Its just a boring box with lot of windows. Hotels are hospitality buildings where service and comfort to the guests/visitors is the prime concern. It has to be a beautiful building with rich, healthy and welcoming environment. If you are looking for professional consultancy you can share your contact here or can contact me. Thanks and Regards Ar. Ravi Prakash 8882204074 ar.ravi2013@gmail.com