Too simple or too sentimental for what? You're the composer, you decide how you want it to go. Nice piece, I enjoyed listening
Thanks! That's very kind of you. I did a lot of training as a kind of academic composer/pianist/musicologist some decades ago, but have left that world behind (more or less). These days, I try to write as a feel, but sometimes worry that 'serious musicians' will see my music as being cliched/simplistic...
The question is who you are writing for then. Are you writing to please serious musicians? Or are you writing to please your own ears? (you saying that you try to write as you feel suggests the latter) Some serious musicians do enjoy minimalistic, simplistic music, others want big and complex works only. You can't please everyone, it's just not possible. I have some background writing compositions myself and if I were writing today I would focus on writing whatever music I enjoy writing and hearing, and only worry about what other people are looking for if I was doing a comission, scoring a video/film or something like that.