Negative angles for servo?? that can't work, the value is converted to pulse widths, expect 0 to 180 only to work.
You seem to want to smoothly move each servo in a loop (delay statements missing?) - but to run 5 in parallel you can't code like this, you need to maintain state for each channel and drive them in event-driven manner - you dont have the luxury of hogging the CPU for one servo at a time.
Also you should note the code button (#) for quoting code.