Really liked the colouring, I only see good potential in this picture!

Go on!

Great first attempt.. much better than mine lol. The best tip is to practice, practice & then practice some more. I am personally reintroducing myself to photoshop, and I rely heavily on tutorials to help expand my knowledge base. Keep up the good work.

For a beginner you're doing really well, keep doing what you're doing and keep yourself motivated and you'll see improvement comes quite quickly! It's clear to me that you really challenged yourself with this piece, you're trying various advanced techniques which are really hard to get right, and while some areas aren't perfect, the ambition and care taken bring it to a level of which you should be proud. Keep up the effort, and thanks for sharing your work with me!