Hey MartynRich
This is a service I can offer
I am still learning (so the price reflects that
) but I am building up my toys and have developed a mastering chain that is getting some very nice results
My "USP" would be working with "home recordings" to give their tracks a pro / radio ready sound - and I have developed some techniques for this purpose
The key to finding an online mastering (or mixing or production) service is COMMUNICATION
Will they deliver something YOU want or something THEY think it should sound like
Music is sooooo subjective it is important to find someone you can work with to discuss ideas but ultimately end up with something YOU are happy with
I will drop you a PM with some more details