Is it wrong to use non-explicit pictures as a replacement for porn

I'm trying to quit porn and reduce how often I masturbate. As part of this, I've been considering using pictures of normal women as a replacement, nothing explicit or erotic. For example, today I masturbated to a picture of a woman in yoga pants that I found sexy, but it wasn't anything graphic or pornographic. Is this a healthy alternative, or does it still perpetuate the same habits I'm trying to change? I'd appreciate your thoughts or advice