( I could not open the .bmp.) Ed, I think you need to dedicate your dock lines- do not remove them when you go out. I believe you'd only want the lines from the boat, around the pilings, and back to the boat when at some other marina when you need to retrieve the lines upon departure. In my sailing club I get alot of "newbies", some who have never even been on a boat. It is easier to have dock lines at a pre-configured length with loops that they can just lay over the cleats, starting with the windward side (the captain having told them which was the windward side). After all 6 loops are over a cleat we can go back and put them under and around the cleats.
On the lines you have from the forward piling to the aft one, secure a 1x2 inch (stick/board/pipe), maybe just a foot long, so it is vertical in it's static postion. Once you lift your line off your boat cleat, lay it over the stick. If the stick tilts and dumps the line, you need more length/weight on the bottom end. It should be easy to reach when you come back in. I never leave or enter the slip without two boat hooks at the ready. One on the bow is a must.
I have a 33-foot Beny in a 30-foot slip, so the slip width next to the finger pier is just not enough to go stern-in.
Also, if you think about this as a geometry picture, your stern lines should be at deck-level when it is mid-tide. I can't quote tan/sin/cos and all that, but with the lines horizontal to the boat at mid-tide, the boat is as far over as it can go. As the tide goes higher or lower, the angle of the line effectively makes the boat closer to the pling, thus farther away from your neighbor. I don't know the tidal range there, but the way you have them, the higher the tide, the more the boat is allowed to go sideways. If nothing else, make them the same level as the bow lines to the bulkhead.... I have two spring lines. From the mid-ship cleat one goes up from the boat toe rail (to outter piling), the other goes down (to bulkhead piling). The lower the tide, the more the boat is pulled back in the slip, into deeper water. The higher the tide, the more the stern is pulled forward, away from the outter pilings