Welders - Please Critique my Welds!

[DeepBlue68]

Anyone who has any TIG experience, I'd love to hear your thoughts/comments/tips/etc on two T-joints I welded at my welding class last week. I'm in my second welding class at a local junior college, and I've been working solely on TIG the last 5 or 6 weeks. It's taken me about 2 classes to finally get my T-joints looking halfway decent (IMO). Here's a couple I did. I apologize in advance for the crappy pics...I was having a lot of trouble getting any decent ones.

I've done steel, stainless, and aluminum, and stainless is by far my favorite to weld so far. On the stainless piece, I know I got the right side a little hot since it's kinda grayish colored. I'm hoping to start TIGing on stainless 2.5" tube pretty soon because I wanna build my own exhaust from the headers back. It'll be a big undertaking, but I'm a pretty patient person when it comes to this kind of stuff.

The first is an A36 1018 CR Steel using a 2% thoriated (IIRC) tungsten and 3/32" filler rod.

The second is a 1/8" 304 (I think ) Stainless Steel also with 3/32" filler. Believe it or not, that was the first T-joint I tried with stainless, so I was pretty happy with the result.

Anyway, let me know what you think! Thanks guys!