Everything seems okay for you. Additionally, getting a student visa for Australia these days is quite easy. You must get all documents correct which must include: your financial documents, academic transcripts, statement of purpose, and IELTS score card. The documents required varies according to a place from where you apply for a visa. In some cases, you may also require health and police certificates.

As you have said you have 10 years of working experience as a web designer. It will surely add some points because your experience and course you want to undertake tally. Looking at everything you provided, you must not have any difficulty to obtain a visa.