Very sweet of you.
Your mother must be very proud of the artist she has raised, and she should be. While your comment did not mention if this is you or a sibling of yours I think it is very sweet that you did this art for your family. My favorite parts are the highlights, they really help to make the artwork look holy and help to mask the negative spaces on the left. The coloring, proportions, line work, and shading are well developed. I honestly cannot find anything to suggest improvement. Keep the faith and the love of your work going strong. O; )