You could place something decorative there (glass, an adhesive, artwork) to give the viewer a sense that they are looking at or out a window. 

Personally, I think it's unreasonable to tell tenants they can't hang any pictures or artwork.  

She gets upset and tells me she will have to do the cleaning next week when she is off . " No , your lease is up today , You will have to wait the legal 45 days for your deposit , AND i see you painted some walls , someones crayon art work is all over the door , all the screens are missing , the grass wasnt cut , you wont be getting the full deposit back "   She then tells me that she will get most of it back , 2 gallons of paint is $50 , cutting the grass is 30 . and the screens arent her problem .

Just hang huge artwork, put down a carpet, bright curtains, bright furniture & pillows, etc.  

Then other clients were complaining about the water being shut off to the barns, this is a very serious problem with horses...and that she would verbally harrass them when I left.During this time, she would also invite my daughter (then about 12) into the house and show her 'artwork' and give her art supplies...She later called the cops and said my daughter broke in and stole art supplies.She called cops and claimed to have 'found' her stolen expensive saddle.

In theory even artwork works, but don't try to get all creative with a smiley face you drew in watercolor paint securing $75k in debt. 

Basically, the IRA is only prohibited from investing in collectibles (artwork, antiques, stamps, etc.) and life insurance.The key is that all such investments are done at arm's length and there be no nexus between the IRA and you or other disqualified parties to the IRA.

Pick nice colors for the pillows, rugs, bedspreads, decor items and art work so that the room is not boring.   

I don't really like the artwork.

As well there are alot of church preachy sermons and a a good part of one class with her son bragging about his expensive cars, flying in a copter to a cliff to propose to his wife, photo's of their wedding, their child, son pumping his wife's artwork, etc.