I have to agree with the others that say it is overkill and not in simple enough terms.
I was just brought onto a bank's rotation by a lender because my reports are thorough, I was told. The last appraiser "killed" five deals in a row, which is normal these days so it didn't bother them, but the originators and loan officers who have to explain the appraisal to the owner and tell them why it appraised low, didn't have enough sound or clearly written reasoning in the report. A new bank policy prohibits production staff from calling the appraiser to discuss the results, so when they called the owner to explain the appraisal, they couldn't. In short the guy was canned because he just stated (or summarized) his market statements and didn't show the data and facts to support it. I bet when he stops getting the work he will think it is because he killed a bunch of deals in a row. Totally wrong.
So to answer you question, Are you on the right track? Absolutely. But I think more and more with the loan officers out of the loop to speak with us, we are going to have to be writing for the lay reader to understand our reasoning, not the guru reviewer or the seasoned and highly analytical underwriter, if we want to stay in demand.
Like Bill Potts said, I too include the average size of the house and the median size of the house that sold, the average price, median price, average price per square foot, median price per square foot. It is amazing how wildly different these figures can be. In one of my counties (though I break things down to markets and only include county data for a trend analysis), the median value has dropped from $165,000 to $150,000 in the past 4 months with about 300 sales a month. But the price per square foot has remained fixed at about $95. Someone can easily misread the market to a 36% decline a year when in fact it is relatively stagnant.
But that might not work for you. It looks to like you have minimal data. I like to break things down the way Riick did with a year-to-date over year-to-date, or even quarter over quarter, because it compares apples to apples. Plus, if my trend is showing a stable market for a fourth straight month in the county, I'll analyze that four+ month period in the report specific to my market to see if the local area has stabized too.
I like how you broke out the REOs. That is difficult to do with my MLS because of a glitch in the system. Supposedly they were working on fixing it.
There are so many ways to skin this cat, and frankly once you settle on a way, the market changes a bit and you have to adapt your method just a little if you want to really understand it correctly.