Baby Silk with US6 needles

I can't decide whether I like how this lacy pattern is coming out. I started out with US5 (3.75mm) needles and it was obviously not coming out right. Then I switched over to US6 (4mm) needles which you can see in the photo above. I know it doesn't look like much, but that little sliver of knitting -- about 5 inches (13 cm) -- is actually the result of many hours of knitting. Yeah, I'm slow; it's mostly knit a few rows, tink back a couple to fix something, knit forward a few rows, tink back a one or two rows, etc. I think the one you see above is much better than the US5 needle version. What do you think? Do you think this will "bloom" after some blocking? Or is it still too tight?

I don't have much experience knitting lace with fingerling weight yarn. I've only knitted with Baby Silk once before when I did my Branching Out scarf. I thought that scarf came out a bit too lacy. I wrote down US6 needles for that, but I'm thinking maybe I was smoking the carpet and meant to write down US8 instead?

No idea whether I should continue with the one above using US6 (4mm) needles.

Should I try casting on with US7 (4.5mm) or US8 (5mm) needles? I don't have any available US7 needles right now, so maybe I'll have to skip up to US8 if I do that.

I wish I had a better idea of how this would look after blocking...

I don't remember what the color of this yarn was called. The label says color 1778. It is a very soft baby alpaca & silk blend... you just just roll around in the stuff all day... :-)

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