A belated welcome to the macro thread Joel. Those first few are excellent.
Denise, I think your post processing is spot on with those last two shots of yours. I really hope you don't have to let your macro lens go.
The extra working distance makes a big difference, especially with insects. It was a big upgrade from the EF-S 60mm macro that I started with. I don't think I would have been able to get any closer to these subjects without casting a shadow. Both are from yesterday, using natural light.
5D Mark II, EF180mm f/3.5L Macro USM @f/9, 1/160s, ISO 640
5D Mark II, EF180mm f/3.5L Macro USM @f/9, 1/160s, ISO 320