weird image sizing

#PanelContainer {
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    align-items: flex-start;
    flex-wrap: wrap;
}
#VirticalStacker {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
}
.horizontalStacker {
    display:flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    width: 100%;
}
.TypeImage {
    width: 48%;
    height:auto;
}
.Panel {
    border: 1px solid;
    border-radius: 30px;
    padding: 20px;
    background-color: #20204a;
    width: 30%;
    align-items: center;
    text-align:center;
}
.InnerPanel {
    background-color: #2c2c63;
    border: 2px solid #39398f;
    text-align: center;
    color: white;
    font-weight: bold;
    letter-spacing: 1.5px;
    border-radius: 20px;
    flex-direction: column;
    align-items: center;
    display: flex;

}
#HeightMetricPanel{
    width: 60%;
}
#WeightMetricPanel {
    width: 60%;
}
#bannerImage {
    width: 100%;
    height: auto;
}
#PokemonName{
    font-size: 50px;
    font-weight: bold;
    text-align: center;
    color: white;
    width: auto;
}
.TitleText {
    font-size: 30px;
    font-weight: bold;
    text-align: center;
    color: white;
    width: auto;
}
.text {
    font-size: 20px;
    font-weight: bold;
    text-align: center;
    color: white;
    width: auto;
}
#PokemonPortrait {
    width: 100%;
    margin: 0 auto;
}


<body style="background-color: #0f0f26">
    <img id="bannerImage" />
    <div id="PanelContainer">
        <div class="Panel">
            <div class="InnerPanel">
                <span id="PokemonName">MissingNo</span>
                <span id="PokemonGenus">MissingNo</span>
            </div>
            <img id="PokemonPortrait" />
        </div>
        <div class="Panel" id="VirticalStacker">
            <span class="TitleText">Pokédex Data</span>
            <span class="text" id="typeText">Types</span>
            <div id="TypeParent" class="HorizontalStacker">
                <img id="TypeImg1" class="TypeImage" />
                <img id="TypeImg2" class="TypeImage" />
            </div>
            <span class="text">Height</span>
            <div class="InnerPanel" id="HeightMetricPanel">MissingNo</div>
            <span class="text">Weight</span>
            <div class="InnerPanel" id="WeightMetricPanel">MissingNo</div>

        </div>
    </div>

</body>