@Alan_Izat , Alexa Media Player entity will be supported in the coming Home Assistant connection release(s), and this means you will be able to control Alexa devices, like play, pause, next, volume and etc, in the SharpTools Media Playback Tile as you would expect, including the media image (album art). The TTS (and video/image) features can be done via the Rule HTTP action and Voice Monkey as mentioned earlier in this post. (Combing the Rule Variables and Variable Tiles in the dashboard, this can be a flexible and powerful tool.) 
Media Player entity in Home Assistant is one of those entities that are not well defined at this moment, but it seems the implementation (attributes and services for example) of Alexa Media Player is similar to the Sonos media player, so I expect both to be supported. As @josh mentioned, don’t forget to watch the HA thread for the updates.