Looks to me like your doing pretty well for a beginer. The welds I made the first time were not any better. Like you said, Jody's site is an amazing resource. The only suggestion I can give is to keep practicing. I spent several hours just playing with the various settings on my 250ex. Have fun!!
When opportunity knocks, most do not recognize it, because it shows up wearing overalls and looking like work!!
Hobart Handler125w/125cf 75/25-1998-Welds perfect
Power tig250EX-w/300cf argon-2/2011-had 4053 problem, fxed and good as new
Power Cool W300-4/2011-works great after making hoses
Power Plasma 50-4/2011-in for repair