Hi Gary, For first attempts these are really good and you should be proud of what you have achieved-I don't think you will look back on these in years to come as I do on some of my early pieces and want to strip them and start again. All the basics are there but you will learn some subtle techniques for improvement from the forum and just with more painting.
You obviously have a good tutor, there is no replacement for one to one advice and encouragement or watching demos at shows etc.
Look forward to seeing more of your work.
Keith