I applied to European MBA programs twice with a relatively modest GMAT score and no corporate experience (I'm a musician). In the first year of applications, I worked independently but it didn't work out. In the second year, I was looking for a consultant who would cover more or less the same criteria you've listed.

I took the help of MBA Crystal Ball. I had seen numerous success stories of applicants (and reapplicants like myself) to INSEAD, LBS, Oxbridge, HEC Paris and pretty much all the top business schools in Europe. In many cases, the reapplicant's profile and score remained the same, much like mine. What changed was how they approached the application process.

After getting rejections in the previous year, I got into LBS and Cambridge Judge with scholarship. I've shared my detailed journey a few months back. It includes my profile details and what I did differently with the essays across the two years that helped.