Question about a baby blanket

Well I have done baby blankets on circs before. I think the one I currently have on the hook has a cast on of 140sts and I have room to spare. I tried this pattern out today just as a sample and I am making a lot of errors. I may be better off doing the panels just so I don't have to frog the whole thing. Also, my scallop isn't as deep and I think that might be something that can be adjusted when it is joined. I guess I better stick with panels. I have to put in a few more practice runs and I think I need to right the pattern out for the even rows b/c knit the knit stitches and purl the purl stitches isn't working for me to well. lol I think when there are stitches purled together they look a little different and it's making me think too hard. lol
I am not sure about the color yet or the yarn. I am also playing with that. I tried a sugar and cream cotton b/c my friend is very "organic", but it felt too stiff. Now I am trying a woolease which looks nicer, but I will most likely just practice until I get to the store and can see what else is out there that I might like. I know Lionheart has an organic, but I am not sure how soft it is or even what the weight is at this point.
Thanks again for answering my questions girls.

I meant to tell you that I love that dress. Your daughter is adorable in it. I also wanted to say thanks for encouraging me to try it as one piece, it is working out beautifully. I placed stitch markers along the way to mark off the pattern and that has done wonders for keeping my place. I can't wait until it's finished. I hope my friend loves it. Thank goodness she is not due until December though, lol.