Ask yourself a few questions
What is your budget?
How do you want to use?
What kinds of projects are you intending to make?
I'll try to explain
Very nice idea n combinations of colour n stitches
The problem was with needle it required a bigger no. Needle
Yes you can give as much gher as you want but for cotton anarkalis its not more than 60".
For net and any synthetic fabric it flares from waist...
Very very very nice
If you need for your personal /household sewing opt for semi industrial one its very nice.
I too agree with you shoulder drops abruptly if it's too wide
Check machine tension
And thread the needle with the pressure foot in up position and not down try this
Don't drag while sewing
Use facing instead of bias tapes
Cut the neckline after attaching the facing
Use bias binding for back neckline