hmm. Timmy, you're doing good but the first and second ones weren't Uchi Mata. Just saying. First was a "O soto guruma / O soto gari" and second was a "sumi otoshi". There are differences between them.
Try to watch some videos in yt and you're gonna understand it better.

Also It's nice that you got the o soto gari thing. I still couldn't make it. :v